ipr.c revision b75424fcfe8fae56344a65e3f04bbc7e975e750e
1/* 2 * ipr.c -- driver for IBM Power Linux RAID adapters 3 * 4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation 5 * 6 * Copyright (C) 2003, 2004 IBM Corporation 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24/* 25 * Notes: 26 * 27 * This driver is used to control the following SCSI adapters: 28 * 29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B 30 * 31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter 32 * PCI-X Dual Channel Ultra 320 SCSI Adapter 33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card 34 * Embedded SCSI adapter on p615 and p655 systems 35 * 36 * Supported Hardware Features: 37 * - Ultra 320 SCSI controller 38 * - PCI-X host interface 39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine 40 * - Non-Volatile Write Cache 41 * - Supports attachment of non-RAID disks, tape, and optical devices 42 * - RAID Levels 0, 5, 10 43 * - Hot spare 44 * - Background Parity Checking 45 * - Background Data Scrubbing 46 * - Ability to increase the capacity of an existing RAID 5 disk array 47 * by adding disks 48 * 49 * Driver Features: 50 * - Tagged command queuing 51 * - Adapter microcode download 52 * - PCI hot plug 53 * - SCSI device hot plug 54 * 55 */ 56 57#include <linux/fs.h> 58#include <linux/init.h> 59#include <linux/types.h> 60#include <linux/errno.h> 61#include <linux/kernel.h> 62#include <linux/ioport.h> 63#include <linux/delay.h> 64#include <linux/pci.h> 65#include <linux/wait.h> 66#include <linux/spinlock.h> 67#include <linux/sched.h> 68#include <linux/interrupt.h> 69#include <linux/blkdev.h> 70#include <linux/firmware.h> 71#include <linux/module.h> 72#include <linux/moduleparam.h> 73#include <linux/libata.h> 74#include <linux/hdreg.h> 75#include <asm/io.h> 76#include <asm/irq.h> 77#include <asm/processor.h> 78#include <scsi/scsi.h> 79#include <scsi/scsi_host.h> 80#include <scsi/scsi_tcq.h> 81#include <scsi/scsi_eh.h> 82#include <scsi/scsi_cmnd.h> 83#include "ipr.h" 84 85/* 86 * Global Data 87 */ 88static LIST_HEAD(ipr_ioa_head); 89static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; 90static unsigned int ipr_max_speed = 1; 91static int ipr_testmode = 0; 92static unsigned int ipr_fastfail = 0; 93static unsigned int ipr_transop_timeout = 0; 94static unsigned int ipr_enable_cache = 1; 95static unsigned int ipr_debug = 0; 96static unsigned int ipr_dual_ioa_raid = 1; 97static DEFINE_SPINLOCK(ipr_driver_lock); 98 99/* This table describes the differences between DMA controller chips */ 100static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { 101 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ 102 .mailbox = 0x0042C, 103 .cache_line_size = 0x20, 104 { 105 .set_interrupt_mask_reg = 0x0022C, 106 .clr_interrupt_mask_reg = 0x00230, 107 .sense_interrupt_mask_reg = 0x0022C, 108 .clr_interrupt_reg = 0x00228, 109 .sense_interrupt_reg = 0x00224, 110 .ioarrin_reg = 0x00404, 111 .sense_uproc_interrupt_reg = 0x00214, 112 .set_uproc_interrupt_reg = 0x00214, 113 .clr_uproc_interrupt_reg = 0x00218 114 } 115 }, 116 { /* Snipe and Scamp */ 117 .mailbox = 0x0052C, 118 .cache_line_size = 0x20, 119 { 120 .set_interrupt_mask_reg = 0x00288, 121 .clr_interrupt_mask_reg = 0x0028C, 122 .sense_interrupt_mask_reg = 0x00288, 123 .clr_interrupt_reg = 0x00284, 124 .sense_interrupt_reg = 0x00280, 125 .ioarrin_reg = 0x00504, 126 .sense_uproc_interrupt_reg = 0x00290, 127 .set_uproc_interrupt_reg = 0x00290, 128 .clr_uproc_interrupt_reg = 0x00294 129 } 130 }, 131}; 132 133static const struct ipr_chip_t ipr_chip[] = { 134 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] }, 135 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] }, 136 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] }, 137 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] }, 138 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] }, 139 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] }, 140 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] } 141}; 142 143static int ipr_max_bus_speeds [] = { 144 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 145}; 146 147MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 148MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 149module_param_named(max_speed, ipr_max_speed, uint, 0); 150MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 151module_param_named(log_level, ipr_log_level, uint, 0); 152MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 153module_param_named(testmode, ipr_testmode, int, 0); 154MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 155module_param_named(fastfail, ipr_fastfail, int, 0); 156MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 157module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 158MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 159module_param_named(enable_cache, ipr_enable_cache, int, 0); 160MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); 161module_param_named(debug, ipr_debug, int, 0); 162MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 163module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 164MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 165MODULE_LICENSE("GPL"); 166MODULE_VERSION(IPR_DRIVER_VERSION); 167 168/* A constant array of IOASCs/URCs/Error Messages */ 169static const 170struct ipr_error_table_t ipr_error_table[] = { 171 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 172 "8155: An unknown error was received"}, 173 {0x00330000, 0, 0, 174 "Soft underlength error"}, 175 {0x005A0000, 0, 0, 176 "Command to be cancelled not found"}, 177 {0x00808000, 0, 0, 178 "Qualified success"}, 179 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 180 "FFFE: Soft device bus error recovered by the IOA"}, 181 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 182 "4101: Soft device bus fabric error"}, 183 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 184 "FFF9: Device sector reassign successful"}, 185 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 186 "FFF7: Media error recovered by device rewrite procedures"}, 187 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 188 "7001: IOA sector reassignment successful"}, 189 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 190 "FFF9: Soft media error. Sector reassignment recommended"}, 191 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 192 "FFF7: Media error recovered by IOA rewrite procedures"}, 193 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 194 "FF3D: Soft PCI bus error recovered by the IOA"}, 195 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 196 "FFF6: Device hardware error recovered by the IOA"}, 197 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 198 "FFF6: Device hardware error recovered by the device"}, 199 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 200 "FF3D: Soft IOA error recovered by the IOA"}, 201 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 202 "FFFA: Undefined device response recovered by the IOA"}, 203 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 204 "FFF6: Device bus error, message or command phase"}, 205 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 206 "FFFE: Task Management Function failed"}, 207 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 208 "FFF6: Failure prediction threshold exceeded"}, 209 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 210 "8009: Impending cache battery pack failure"}, 211 {0x02040400, 0, 0, 212 "34FF: Disk device format in progress"}, 213 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 214 "9070: IOA requested reset"}, 215 {0x023F0000, 0, 0, 216 "Synchronization required"}, 217 {0x024E0000, 0, 0, 218 "No ready, IOA shutdown"}, 219 {0x025A0000, 0, 0, 220 "Not ready, IOA has been shutdown"}, 221 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 222 "3020: Storage subsystem configuration error"}, 223 {0x03110B00, 0, 0, 224 "FFF5: Medium error, data unreadable, recommend reassign"}, 225 {0x03110C00, 0, 0, 226 "7000: Medium error, data unreadable, do not reassign"}, 227 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 228 "FFF3: Disk media format bad"}, 229 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 230 "3002: Addressed device failed to respond to selection"}, 231 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 232 "3100: Device bus error"}, 233 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 234 "3109: IOA timed out a device command"}, 235 {0x04088000, 0, 0, 236 "3120: SCSI bus is not operational"}, 237 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 238 "4100: Hard device bus fabric error"}, 239 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 240 "9000: IOA reserved area data check"}, 241 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 242 "9001: IOA reserved area invalid data pattern"}, 243 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 244 "9002: IOA reserved area LRC error"}, 245 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 246 "102E: Out of alternate sectors for disk storage"}, 247 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 248 "FFF4: Data transfer underlength error"}, 249 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 250 "FFF4: Data transfer overlength error"}, 251 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 252 "3400: Logical unit failure"}, 253 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 254 "FFF4: Device microcode is corrupt"}, 255 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 256 "8150: PCI bus error"}, 257 {0x04430000, 1, 0, 258 "Unsupported device bus message received"}, 259 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 260 "FFF4: Disk device problem"}, 261 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 262 "8150: Permanent IOA failure"}, 263 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 264 "3010: Disk device returned wrong response to IOA"}, 265 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 266 "8151: IOA microcode error"}, 267 {0x04448500, 0, 0, 268 "Device bus status error"}, 269 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 270 "8157: IOA error requiring IOA reset to recover"}, 271 {0x04448700, 0, 0, 272 "ATA device status error"}, 273 {0x04490000, 0, 0, 274 "Message reject received from the device"}, 275 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 276 "8008: A permanent cache battery pack failure occurred"}, 277 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 278 "9090: Disk unit has been modified after the last known status"}, 279 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 280 "9081: IOA detected device error"}, 281 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 282 "9082: IOA detected device error"}, 283 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 284 "3110: Device bus error, message or command phase"}, 285 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 286 "3110: SAS Command / Task Management Function failed"}, 287 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 288 "9091: Incorrect hardware configuration change has been detected"}, 289 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 290 "9073: Invalid multi-adapter configuration"}, 291 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 292 "4010: Incorrect connection between cascaded expanders"}, 293 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 294 "4020: Connections exceed IOA design limits"}, 295 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 296 "4030: Incorrect multipath connection"}, 297 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 298 "4110: Unsupported enclosure function"}, 299 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 300 "FFF4: Command to logical unit failed"}, 301 {0x05240000, 1, 0, 302 "Illegal request, invalid request type or request packet"}, 303 {0x05250000, 0, 0, 304 "Illegal request, invalid resource handle"}, 305 {0x05258000, 0, 0, 306 "Illegal request, commands not allowed to this device"}, 307 {0x05258100, 0, 0, 308 "Illegal request, command not allowed to a secondary adapter"}, 309 {0x05260000, 0, 0, 310 "Illegal request, invalid field in parameter list"}, 311 {0x05260100, 0, 0, 312 "Illegal request, parameter not supported"}, 313 {0x05260200, 0, 0, 314 "Illegal request, parameter value invalid"}, 315 {0x052C0000, 0, 0, 316 "Illegal request, command sequence error"}, 317 {0x052C8000, 1, 0, 318 "Illegal request, dual adapter support not enabled"}, 319 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 320 "9031: Array protection temporarily suspended, protection resuming"}, 321 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 322 "9040: Array protection temporarily suspended, protection resuming"}, 323 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 324 "3140: Device bus not ready to ready transition"}, 325 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 326 "FFFB: SCSI bus was reset"}, 327 {0x06290500, 0, 0, 328 "FFFE: SCSI bus transition to single ended"}, 329 {0x06290600, 0, 0, 330 "FFFE: SCSI bus transition to LVD"}, 331 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 332 "FFFB: SCSI bus was reset by another initiator"}, 333 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 334 "3029: A device replacement has occurred"}, 335 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 336 "9051: IOA cache data exists for a missing or failed device"}, 337 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 338 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 339 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 340 "9025: Disk unit is not supported at its physical location"}, 341 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 342 "3020: IOA detected a SCSI bus configuration error"}, 343 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 344 "3150: SCSI bus configuration error"}, 345 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 346 "9074: Asymmetric advanced function disk configuration"}, 347 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 348 "4040: Incomplete multipath connection between IOA and enclosure"}, 349 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 350 "4041: Incomplete multipath connection between enclosure and device"}, 351 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 352 "9075: Incomplete multipath connection between IOA and remote IOA"}, 353 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 354 "9076: Configuration error, missing remote IOA"}, 355 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 356 "4050: Enclosure does not support a required multipath function"}, 357 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, 358 "4070: Logically bad block written on device"}, 359 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 360 "9041: Array protection temporarily suspended"}, 361 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 362 "9042: Corrupt array parity detected on specified device"}, 363 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 364 "9030: Array no longer protected due to missing or failed disk unit"}, 365 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 366 "9071: Link operational transition"}, 367 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 368 "9072: Link not operational transition"}, 369 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 370 "9032: Array exposed but still protected"}, 371 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, 372 "70DD: Device forced failed by disrupt device command"}, 373 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 374 "4061: Multipath redundancy level got better"}, 375 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 376 "4060: Multipath redundancy level got worse"}, 377 {0x07270000, 0, 0, 378 "Failure due to other device"}, 379 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 380 "9008: IOA does not support functions expected by devices"}, 381 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 382 "9010: Cache data associated with attached devices cannot be found"}, 383 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 384 "9011: Cache data belongs to devices other than those attached"}, 385 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 386 "9020: Array missing 2 or more devices with only 1 device present"}, 387 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 388 "9021: Array missing 2 or more devices with 2 or more devices present"}, 389 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 390 "9022: Exposed array is missing a required device"}, 391 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 392 "9023: Array member(s) not at required physical locations"}, 393 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 394 "9024: Array not functional due to present hardware configuration"}, 395 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 396 "9026: Array not functional due to present hardware configuration"}, 397 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 398 "9027: Array is missing a device and parity is out of sync"}, 399 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 400 "9028: Maximum number of arrays already exist"}, 401 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 402 "9050: Required cache data cannot be located for a disk unit"}, 403 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 404 "9052: Cache data exists for a device that has been modified"}, 405 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 406 "9054: IOA resources not available due to previous problems"}, 407 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 408 "9092: Disk unit requires initialization before use"}, 409 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 410 "9029: Incorrect hardware configuration change has been detected"}, 411 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 412 "9060: One or more disk pairs are missing from an array"}, 413 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 414 "9061: One or more disks are missing from an array"}, 415 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 416 "9062: One or more disks are missing from an array"}, 417 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 418 "9063: Maximum number of functional arrays has been exceeded"}, 419 {0x0B260000, 0, 0, 420 "Aborted command, invalid descriptor"}, 421 {0x0B5A0000, 0, 0, 422 "Command terminated by host"} 423}; 424 425static const struct ipr_ses_table_entry ipr_ses_table[] = { 426 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 427 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 428 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 429 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 430 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 431 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 432 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 433 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 434 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 435 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 436 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 437 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 438 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 439}; 440 441/* 442 * Function Prototypes 443 */ 444static int ipr_reset_alert(struct ipr_cmnd *); 445static void ipr_process_ccn(struct ipr_cmnd *); 446static void ipr_process_error(struct ipr_cmnd *); 447static void ipr_reset_ioa_job(struct ipr_cmnd *); 448static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 449 enum ipr_shutdown_type); 450 451#ifdef CONFIG_SCSI_IPR_TRACE 452/** 453 * ipr_trc_hook - Add a trace entry to the driver trace 454 * @ipr_cmd: ipr command struct 455 * @type: trace type 456 * @add_data: additional data 457 * 458 * Return value: 459 * none 460 **/ 461static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 462 u8 type, u32 add_data) 463{ 464 struct ipr_trace_entry *trace_entry; 465 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 466 467 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; 468 trace_entry->time = jiffies; 469 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 470 trace_entry->type = type; 471 trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command; 472 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 473 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 474 trace_entry->u.add_data = add_data; 475} 476#else 477#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) 478#endif 479 480/** 481 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 482 * @ipr_cmd: ipr command struct 483 * 484 * Return value: 485 * none 486 **/ 487static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 488{ 489 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 490 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 491 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); 492 493 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 494 ioarcb->write_data_transfer_length = 0; 495 ioarcb->read_data_transfer_length = 0; 496 ioarcb->write_ioadl_len = 0; 497 ioarcb->read_ioadl_len = 0; 498 ioarcb->write_ioadl_addr = 499 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 500 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 501 ioasa->ioasc = 0; 502 ioasa->residual_data_len = 0; 503 ioasa->u.gata.status = 0; 504 505 ipr_cmd->scsi_cmd = NULL; 506 ipr_cmd->qc = NULL; 507 ipr_cmd->sense_buffer[0] = 0; 508 ipr_cmd->dma_use_sg = 0; 509} 510 511/** 512 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 513 * @ipr_cmd: ipr command struct 514 * 515 * Return value: 516 * none 517 **/ 518static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 519{ 520 ipr_reinit_ipr_cmnd(ipr_cmd); 521 ipr_cmd->u.scratch = 0; 522 ipr_cmd->sibling = NULL; 523 init_timer(&ipr_cmd->timer); 524} 525 526/** 527 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 528 * @ioa_cfg: ioa config struct 529 * 530 * Return value: 531 * pointer to ipr command struct 532 **/ 533static 534struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 535{ 536 struct ipr_cmnd *ipr_cmd; 537 538 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 539 list_del(&ipr_cmd->queue); 540 ipr_init_ipr_cmnd(ipr_cmd); 541 542 return ipr_cmd; 543} 544 545/** 546 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 547 * @ioa_cfg: ioa config struct 548 * @clr_ints: interrupts to clear 549 * 550 * This function masks all interrupts on the adapter, then clears the 551 * interrupts specified in the mask 552 * 553 * Return value: 554 * none 555 **/ 556static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 557 u32 clr_ints) 558{ 559 volatile u32 int_reg; 560 561 /* Stop new interrupts */ 562 ioa_cfg->allow_interrupts = 0; 563 564 /* Set interrupt mask to stop all new interrupts */ 565 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 566 567 /* Clear any pending interrupts */ 568 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); 569 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 570} 571 572/** 573 * ipr_save_pcix_cmd_reg - Save PCI-X command register 574 * @ioa_cfg: ioa config struct 575 * 576 * Return value: 577 * 0 on success / -EIO on failure 578 **/ 579static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 580{ 581 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 582 583 if (pcix_cmd_reg == 0) 584 return 0; 585 586 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 587 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 588 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 589 return -EIO; 590 } 591 592 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 593 return 0; 594} 595 596/** 597 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 598 * @ioa_cfg: ioa config struct 599 * 600 * Return value: 601 * 0 on success / -EIO on failure 602 **/ 603static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 604{ 605 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 606 607 if (pcix_cmd_reg) { 608 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 609 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 610 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 611 return -EIO; 612 } 613 } 614 615 return 0; 616} 617 618/** 619 * ipr_sata_eh_done - done function for aborted SATA commands 620 * @ipr_cmd: ipr command struct 621 * 622 * This function is invoked for ops generated to SATA 623 * devices which are being aborted. 624 * 625 * Return value: 626 * none 627 **/ 628static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 629{ 630 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 631 struct ata_queued_cmd *qc = ipr_cmd->qc; 632 struct ipr_sata_port *sata_port = qc->ap->private_data; 633 634 qc->err_mask |= AC_ERR_OTHER; 635 sata_port->ioasa.status |= ATA_BUSY; 636 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 637 ata_qc_complete(qc); 638} 639 640/** 641 * ipr_scsi_eh_done - mid-layer done function for aborted ops 642 * @ipr_cmd: ipr command struct 643 * 644 * This function is invoked by the interrupt handler for 645 * ops generated by the SCSI mid-layer which are being aborted. 646 * 647 * Return value: 648 * none 649 **/ 650static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 651{ 652 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 653 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 654 655 scsi_cmd->result |= (DID_ERROR << 16); 656 657 scsi_dma_unmap(ipr_cmd->scsi_cmd); 658 scsi_cmd->scsi_done(scsi_cmd); 659 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 660} 661 662/** 663 * ipr_fail_all_ops - Fails all outstanding ops. 664 * @ioa_cfg: ioa config struct 665 * 666 * This function fails all outstanding ops. 667 * 668 * Return value: 669 * none 670 **/ 671static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 672{ 673 struct ipr_cmnd *ipr_cmd, *temp; 674 675 ENTER; 676 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 677 list_del(&ipr_cmd->queue); 678 679 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 680 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); 681 682 if (ipr_cmd->scsi_cmd) 683 ipr_cmd->done = ipr_scsi_eh_done; 684 else if (ipr_cmd->qc) 685 ipr_cmd->done = ipr_sata_eh_done; 686 687 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 688 del_timer(&ipr_cmd->timer); 689 ipr_cmd->done(ipr_cmd); 690 } 691 692 LEAVE; 693} 694 695/** 696 * ipr_do_req - Send driver initiated requests. 697 * @ipr_cmd: ipr command struct 698 * @done: done function 699 * @timeout_func: timeout function 700 * @timeout: timeout value 701 * 702 * This function sends the specified command to the adapter with the 703 * timeout given. The done function is invoked on command completion. 704 * 705 * Return value: 706 * none 707 **/ 708static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 709 void (*done) (struct ipr_cmnd *), 710 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 711{ 712 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 713 714 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 715 716 ipr_cmd->done = done; 717 718 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 719 ipr_cmd->timer.expires = jiffies + timeout; 720 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 721 722 add_timer(&ipr_cmd->timer); 723 724 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 725 726 mb(); 727 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 728 ioa_cfg->regs.ioarrin_reg); 729} 730 731/** 732 * ipr_internal_cmd_done - Op done function for an internally generated op. 733 * @ipr_cmd: ipr command struct 734 * 735 * This function is the op done function for an internally generated, 736 * blocking op. It simply wakes the sleeping thread. 737 * 738 * Return value: 739 * none 740 **/ 741static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 742{ 743 if (ipr_cmd->sibling) 744 ipr_cmd->sibling = NULL; 745 else 746 complete(&ipr_cmd->completion); 747} 748 749/** 750 * ipr_send_blocking_cmd - Send command and sleep on its completion. 751 * @ipr_cmd: ipr command struct 752 * @timeout_func: function to invoke if command times out 753 * @timeout: timeout 754 * 755 * Return value: 756 * none 757 **/ 758static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 759 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 760 u32 timeout) 761{ 762 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 763 764 init_completion(&ipr_cmd->completion); 765 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 766 767 spin_unlock_irq(ioa_cfg->host->host_lock); 768 wait_for_completion(&ipr_cmd->completion); 769 spin_lock_irq(ioa_cfg->host->host_lock); 770} 771 772/** 773 * ipr_send_hcam - Send an HCAM to the adapter. 774 * @ioa_cfg: ioa config struct 775 * @type: HCAM type 776 * @hostrcb: hostrcb struct 777 * 778 * This function will send a Host Controlled Async command to the adapter. 779 * If HCAMs are currently not allowed to be issued to the adapter, it will 780 * place the hostrcb on the free queue. 781 * 782 * Return value: 783 * none 784 **/ 785static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 786 struct ipr_hostrcb *hostrcb) 787{ 788 struct ipr_cmnd *ipr_cmd; 789 struct ipr_ioarcb *ioarcb; 790 791 if (ioa_cfg->allow_cmds) { 792 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 793 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 794 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 795 796 ipr_cmd->u.hostrcb = hostrcb; 797 ioarcb = &ipr_cmd->ioarcb; 798 799 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 800 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 801 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 802 ioarcb->cmd_pkt.cdb[1] = type; 803 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 804 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 805 806 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); 807 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 808 ipr_cmd->ioadl[0].flags_and_data_len = 809 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); 810 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); 811 812 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 813 ipr_cmd->done = ipr_process_ccn; 814 else 815 ipr_cmd->done = ipr_process_error; 816 817 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 818 819 mb(); 820 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 821 ioa_cfg->regs.ioarrin_reg); 822 } else { 823 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 824 } 825} 826 827/** 828 * ipr_init_res_entry - Initialize a resource entry struct. 829 * @res: resource entry struct 830 * 831 * Return value: 832 * none 833 **/ 834static void ipr_init_res_entry(struct ipr_resource_entry *res) 835{ 836 res->needs_sync_complete = 0; 837 res->in_erp = 0; 838 res->add_to_ml = 0; 839 res->del_from_ml = 0; 840 res->resetting_device = 0; 841 res->sdev = NULL; 842 res->sata_port = NULL; 843} 844 845/** 846 * ipr_handle_config_change - Handle a config change from the adapter 847 * @ioa_cfg: ioa config struct 848 * @hostrcb: hostrcb 849 * 850 * Return value: 851 * none 852 **/ 853static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 854 struct ipr_hostrcb *hostrcb) 855{ 856 struct ipr_resource_entry *res = NULL; 857 struct ipr_config_table_entry *cfgte; 858 u32 is_ndn = 1; 859 860 cfgte = &hostrcb->hcam.u.ccn.cfgte; 861 862 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 863 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, 864 sizeof(cfgte->res_addr))) { 865 is_ndn = 0; 866 break; 867 } 868 } 869 870 if (is_ndn) { 871 if (list_empty(&ioa_cfg->free_res_q)) { 872 ipr_send_hcam(ioa_cfg, 873 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 874 hostrcb); 875 return; 876 } 877 878 res = list_entry(ioa_cfg->free_res_q.next, 879 struct ipr_resource_entry, queue); 880 881 list_del(&res->queue); 882 ipr_init_res_entry(res); 883 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 884 } 885 886 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); 887 888 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 889 if (res->sdev) { 890 res->del_from_ml = 1; 891 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; 892 if (ioa_cfg->allow_ml_add_del) 893 schedule_work(&ioa_cfg->work_q); 894 } else 895 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 896 } else if (!res->sdev) { 897 res->add_to_ml = 1; 898 if (ioa_cfg->allow_ml_add_del) 899 schedule_work(&ioa_cfg->work_q); 900 } 901 902 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 903} 904 905/** 906 * ipr_process_ccn - Op done function for a CCN. 907 * @ipr_cmd: ipr command struct 908 * 909 * This function is the op done function for a configuration 910 * change notification host controlled async from the adapter. 911 * 912 * Return value: 913 * none 914 **/ 915static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 916{ 917 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 918 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 919 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 920 921 list_del(&hostrcb->queue); 922 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 923 924 if (ioasc) { 925 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 926 dev_err(&ioa_cfg->pdev->dev, 927 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 928 929 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 930 } else { 931 ipr_handle_config_change(ioa_cfg, hostrcb); 932 } 933} 934 935/** 936 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 937 * @i: index into buffer 938 * @buf: string to modify 939 * 940 * This function will strip all trailing whitespace, pad the end 941 * of the string with a single space, and NULL terminate the string. 942 * 943 * Return value: 944 * new length of string 945 **/ 946static int strip_and_pad_whitespace(int i, char *buf) 947{ 948 while (i && buf[i] == ' ') 949 i--; 950 buf[i+1] = ' '; 951 buf[i+2] = '\0'; 952 return i + 2; 953} 954 955/** 956 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 957 * @prefix: string to print at start of printk 958 * @hostrcb: hostrcb pointer 959 * @vpd: vendor/product id/sn struct 960 * 961 * Return value: 962 * none 963 **/ 964static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 965 struct ipr_vpd *vpd) 966{ 967 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 968 int i = 0; 969 970 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 971 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 972 973 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 974 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 975 976 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 977 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 978 979 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 980} 981 982/** 983 * ipr_log_vpd - Log the passed VPD to the error log. 984 * @vpd: vendor/product id/sn struct 985 * 986 * Return value: 987 * none 988 **/ 989static void ipr_log_vpd(struct ipr_vpd *vpd) 990{ 991 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 992 + IPR_SERIAL_NUM_LEN]; 993 994 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 995 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 996 IPR_PROD_ID_LEN); 997 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 998 ipr_err("Vendor/Product ID: %s\n", buffer); 999 1000 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1001 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1002 ipr_err(" Serial Number: %s\n", buffer); 1003} 1004 1005/** 1006 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1007 * @prefix: string to print at start of printk 1008 * @hostrcb: hostrcb pointer 1009 * @vpd: vendor/product id/sn/wwn struct 1010 * 1011 * Return value: 1012 * none 1013 **/ 1014static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1015 struct ipr_ext_vpd *vpd) 1016{ 1017 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1018 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1019 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1020} 1021 1022/** 1023 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1024 * @vpd: vendor/product id/sn/wwn struct 1025 * 1026 * Return value: 1027 * none 1028 **/ 1029static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1030{ 1031 ipr_log_vpd(&vpd->vpd); 1032 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1033 be32_to_cpu(vpd->wwid[1])); 1034} 1035 1036/** 1037 * ipr_log_enhanced_cache_error - Log a cache error. 1038 * @ioa_cfg: ioa config struct 1039 * @hostrcb: hostrcb struct 1040 * 1041 * Return value: 1042 * none 1043 **/ 1044static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1045 struct ipr_hostrcb *hostrcb) 1046{ 1047 struct ipr_hostrcb_type_12_error *error = 1048 &hostrcb->hcam.u.error.u.type_12_error; 1049 1050 ipr_err("-----Current Configuration-----\n"); 1051 ipr_err("Cache Directory Card Information:\n"); 1052 ipr_log_ext_vpd(&error->ioa_vpd); 1053 ipr_err("Adapter Card Information:\n"); 1054 ipr_log_ext_vpd(&error->cfc_vpd); 1055 1056 ipr_err("-----Expected Configuration-----\n"); 1057 ipr_err("Cache Directory Card Information:\n"); 1058 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1059 ipr_err("Adapter Card Information:\n"); 1060 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1061 1062 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1063 be32_to_cpu(error->ioa_data[0]), 1064 be32_to_cpu(error->ioa_data[1]), 1065 be32_to_cpu(error->ioa_data[2])); 1066} 1067 1068/** 1069 * ipr_log_cache_error - Log a cache error. 1070 * @ioa_cfg: ioa config struct 1071 * @hostrcb: hostrcb struct 1072 * 1073 * Return value: 1074 * none 1075 **/ 1076static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1077 struct ipr_hostrcb *hostrcb) 1078{ 1079 struct ipr_hostrcb_type_02_error *error = 1080 &hostrcb->hcam.u.error.u.type_02_error; 1081 1082 ipr_err("-----Current Configuration-----\n"); 1083 ipr_err("Cache Directory Card Information:\n"); 1084 ipr_log_vpd(&error->ioa_vpd); 1085 ipr_err("Adapter Card Information:\n"); 1086 ipr_log_vpd(&error->cfc_vpd); 1087 1088 ipr_err("-----Expected Configuration-----\n"); 1089 ipr_err("Cache Directory Card Information:\n"); 1090 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1091 ipr_err("Adapter Card Information:\n"); 1092 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1093 1094 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1095 be32_to_cpu(error->ioa_data[0]), 1096 be32_to_cpu(error->ioa_data[1]), 1097 be32_to_cpu(error->ioa_data[2])); 1098} 1099 1100/** 1101 * ipr_log_enhanced_config_error - Log a configuration error. 1102 * @ioa_cfg: ioa config struct 1103 * @hostrcb: hostrcb struct 1104 * 1105 * Return value: 1106 * none 1107 **/ 1108static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1109 struct ipr_hostrcb *hostrcb) 1110{ 1111 int errors_logged, i; 1112 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1113 struct ipr_hostrcb_type_13_error *error; 1114 1115 error = &hostrcb->hcam.u.error.u.type_13_error; 1116 errors_logged = be32_to_cpu(error->errors_logged); 1117 1118 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1119 be32_to_cpu(error->errors_detected), errors_logged); 1120 1121 dev_entry = error->dev; 1122 1123 for (i = 0; i < errors_logged; i++, dev_entry++) { 1124 ipr_err_separator; 1125 1126 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1127 ipr_log_ext_vpd(&dev_entry->vpd); 1128 1129 ipr_err("-----New Device Information-----\n"); 1130 ipr_log_ext_vpd(&dev_entry->new_vpd); 1131 1132 ipr_err("Cache Directory Card Information:\n"); 1133 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1134 1135 ipr_err("Adapter Card Information:\n"); 1136 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1137 } 1138} 1139 1140/** 1141 * ipr_log_config_error - Log a configuration error. 1142 * @ioa_cfg: ioa config struct 1143 * @hostrcb: hostrcb struct 1144 * 1145 * Return value: 1146 * none 1147 **/ 1148static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1149 struct ipr_hostrcb *hostrcb) 1150{ 1151 int errors_logged, i; 1152 struct ipr_hostrcb_device_data_entry *dev_entry; 1153 struct ipr_hostrcb_type_03_error *error; 1154 1155 error = &hostrcb->hcam.u.error.u.type_03_error; 1156 errors_logged = be32_to_cpu(error->errors_logged); 1157 1158 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1159 be32_to_cpu(error->errors_detected), errors_logged); 1160 1161 dev_entry = error->dev; 1162 1163 for (i = 0; i < errors_logged; i++, dev_entry++) { 1164 ipr_err_separator; 1165 1166 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1167 ipr_log_vpd(&dev_entry->vpd); 1168 1169 ipr_err("-----New Device Information-----\n"); 1170 ipr_log_vpd(&dev_entry->new_vpd); 1171 1172 ipr_err("Cache Directory Card Information:\n"); 1173 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1174 1175 ipr_err("Adapter Card Information:\n"); 1176 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1177 1178 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1179 be32_to_cpu(dev_entry->ioa_data[0]), 1180 be32_to_cpu(dev_entry->ioa_data[1]), 1181 be32_to_cpu(dev_entry->ioa_data[2]), 1182 be32_to_cpu(dev_entry->ioa_data[3]), 1183 be32_to_cpu(dev_entry->ioa_data[4])); 1184 } 1185} 1186 1187/** 1188 * ipr_log_enhanced_array_error - Log an array configuration error. 1189 * @ioa_cfg: ioa config struct 1190 * @hostrcb: hostrcb struct 1191 * 1192 * Return value: 1193 * none 1194 **/ 1195static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1196 struct ipr_hostrcb *hostrcb) 1197{ 1198 int i, num_entries; 1199 struct ipr_hostrcb_type_14_error *error; 1200 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1201 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1202 1203 error = &hostrcb->hcam.u.error.u.type_14_error; 1204 1205 ipr_err_separator; 1206 1207 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1208 error->protection_level, 1209 ioa_cfg->host->host_no, 1210 error->last_func_vset_res_addr.bus, 1211 error->last_func_vset_res_addr.target, 1212 error->last_func_vset_res_addr.lun); 1213 1214 ipr_err_separator; 1215 1216 array_entry = error->array_member; 1217 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1218 sizeof(error->array_member)); 1219 1220 for (i = 0; i < num_entries; i++, array_entry++) { 1221 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1222 continue; 1223 1224 if (be32_to_cpu(error->exposed_mode_adn) == i) 1225 ipr_err("Exposed Array Member %d:\n", i); 1226 else 1227 ipr_err("Array Member %d:\n", i); 1228 1229 ipr_log_ext_vpd(&array_entry->vpd); 1230 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1231 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1232 "Expected Location"); 1233 1234 ipr_err_separator; 1235 } 1236} 1237 1238/** 1239 * ipr_log_array_error - Log an array configuration error. 1240 * @ioa_cfg: ioa config struct 1241 * @hostrcb: hostrcb struct 1242 * 1243 * Return value: 1244 * none 1245 **/ 1246static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1247 struct ipr_hostrcb *hostrcb) 1248{ 1249 int i; 1250 struct ipr_hostrcb_type_04_error *error; 1251 struct ipr_hostrcb_array_data_entry *array_entry; 1252 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1253 1254 error = &hostrcb->hcam.u.error.u.type_04_error; 1255 1256 ipr_err_separator; 1257 1258 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1259 error->protection_level, 1260 ioa_cfg->host->host_no, 1261 error->last_func_vset_res_addr.bus, 1262 error->last_func_vset_res_addr.target, 1263 error->last_func_vset_res_addr.lun); 1264 1265 ipr_err_separator; 1266 1267 array_entry = error->array_member; 1268 1269 for (i = 0; i < 18; i++) { 1270 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1271 continue; 1272 1273 if (be32_to_cpu(error->exposed_mode_adn) == i) 1274 ipr_err("Exposed Array Member %d:\n", i); 1275 else 1276 ipr_err("Array Member %d:\n", i); 1277 1278 ipr_log_vpd(&array_entry->vpd); 1279 1280 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1281 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1282 "Expected Location"); 1283 1284 ipr_err_separator; 1285 1286 if (i == 9) 1287 array_entry = error->array_member2; 1288 else 1289 array_entry++; 1290 } 1291} 1292 1293/** 1294 * ipr_log_hex_data - Log additional hex IOA error data. 1295 * @ioa_cfg: ioa config struct 1296 * @data: IOA error data 1297 * @len: data length 1298 * 1299 * Return value: 1300 * none 1301 **/ 1302static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1303{ 1304 int i; 1305 1306 if (len == 0) 1307 return; 1308 1309 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1310 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1311 1312 for (i = 0; i < len / 4; i += 4) { 1313 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1314 be32_to_cpu(data[i]), 1315 be32_to_cpu(data[i+1]), 1316 be32_to_cpu(data[i+2]), 1317 be32_to_cpu(data[i+3])); 1318 } 1319} 1320 1321/** 1322 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1323 * @ioa_cfg: ioa config struct 1324 * @hostrcb: hostrcb struct 1325 * 1326 * Return value: 1327 * none 1328 **/ 1329static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1330 struct ipr_hostrcb *hostrcb) 1331{ 1332 struct ipr_hostrcb_type_17_error *error; 1333 1334 error = &hostrcb->hcam.u.error.u.type_17_error; 1335 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1336 strstrip(error->failure_reason); 1337 1338 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1339 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1340 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1341 ipr_log_hex_data(ioa_cfg, error->data, 1342 be32_to_cpu(hostrcb->hcam.length) - 1343 (offsetof(struct ipr_hostrcb_error, u) + 1344 offsetof(struct ipr_hostrcb_type_17_error, data))); 1345} 1346 1347/** 1348 * ipr_log_dual_ioa_error - Log a dual adapter error. 1349 * @ioa_cfg: ioa config struct 1350 * @hostrcb: hostrcb struct 1351 * 1352 * Return value: 1353 * none 1354 **/ 1355static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1356 struct ipr_hostrcb *hostrcb) 1357{ 1358 struct ipr_hostrcb_type_07_error *error; 1359 1360 error = &hostrcb->hcam.u.error.u.type_07_error; 1361 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1362 strstrip(error->failure_reason); 1363 1364 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1365 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1366 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1367 ipr_log_hex_data(ioa_cfg, error->data, 1368 be32_to_cpu(hostrcb->hcam.length) - 1369 (offsetof(struct ipr_hostrcb_error, u) + 1370 offsetof(struct ipr_hostrcb_type_07_error, data))); 1371} 1372 1373static const struct { 1374 u8 active; 1375 char *desc; 1376} path_active_desc[] = { 1377 { IPR_PATH_NO_INFO, "Path" }, 1378 { IPR_PATH_ACTIVE, "Active path" }, 1379 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1380}; 1381 1382static const struct { 1383 u8 state; 1384 char *desc; 1385} path_state_desc[] = { 1386 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1387 { IPR_PATH_HEALTHY, "is healthy" }, 1388 { IPR_PATH_DEGRADED, "is degraded" }, 1389 { IPR_PATH_FAILED, "is failed" } 1390}; 1391 1392/** 1393 * ipr_log_fabric_path - Log a fabric path error 1394 * @hostrcb: hostrcb struct 1395 * @fabric: fabric descriptor 1396 * 1397 * Return value: 1398 * none 1399 **/ 1400static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1401 struct ipr_hostrcb_fabric_desc *fabric) 1402{ 1403 int i, j; 1404 u8 path_state = fabric->path_state; 1405 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1406 u8 state = path_state & IPR_PATH_STATE_MASK; 1407 1408 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1409 if (path_active_desc[i].active != active) 1410 continue; 1411 1412 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1413 if (path_state_desc[j].state != state) 1414 continue; 1415 1416 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1417 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1418 path_active_desc[i].desc, path_state_desc[j].desc, 1419 fabric->ioa_port); 1420 } else if (fabric->cascaded_expander == 0xff) { 1421 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1422 path_active_desc[i].desc, path_state_desc[j].desc, 1423 fabric->ioa_port, fabric->phy); 1424 } else if (fabric->phy == 0xff) { 1425 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1426 path_active_desc[i].desc, path_state_desc[j].desc, 1427 fabric->ioa_port, fabric->cascaded_expander); 1428 } else { 1429 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1430 path_active_desc[i].desc, path_state_desc[j].desc, 1431 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1432 } 1433 return; 1434 } 1435 } 1436 1437 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1438 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1439} 1440 1441static const struct { 1442 u8 type; 1443 char *desc; 1444} path_type_desc[] = { 1445 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1446 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1447 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1448 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1449}; 1450 1451static const struct { 1452 u8 status; 1453 char *desc; 1454} path_status_desc[] = { 1455 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1456 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1457 { IPR_PATH_CFG_FAILED, "Failed" }, 1458 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1459 { IPR_PATH_NOT_DETECTED, "Missing" }, 1460 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1461}; 1462 1463static const char *link_rate[] = { 1464 "unknown", 1465 "disabled", 1466 "phy reset problem", 1467 "spinup hold", 1468 "port selector", 1469 "unknown", 1470 "unknown", 1471 "unknown", 1472 "1.5Gbps", 1473 "3.0Gbps", 1474 "unknown", 1475 "unknown", 1476 "unknown", 1477 "unknown", 1478 "unknown", 1479 "unknown" 1480}; 1481 1482/** 1483 * ipr_log_path_elem - Log a fabric path element. 1484 * @hostrcb: hostrcb struct 1485 * @cfg: fabric path element struct 1486 * 1487 * Return value: 1488 * none 1489 **/ 1490static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1491 struct ipr_hostrcb_config_element *cfg) 1492{ 1493 int i, j; 1494 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1495 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1496 1497 if (type == IPR_PATH_CFG_NOT_EXIST) 1498 return; 1499 1500 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1501 if (path_type_desc[i].type != type) 1502 continue; 1503 1504 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 1505 if (path_status_desc[j].status != status) 1506 continue; 1507 1508 if (type == IPR_PATH_CFG_IOA_PORT) { 1509 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 1510 path_status_desc[j].desc, path_type_desc[i].desc, 1511 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1512 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1513 } else { 1514 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 1515 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 1516 path_status_desc[j].desc, path_type_desc[i].desc, 1517 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1518 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1519 } else if (cfg->cascaded_expander == 0xff) { 1520 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 1521 "WWN=%08X%08X\n", path_status_desc[j].desc, 1522 path_type_desc[i].desc, cfg->phy, 1523 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1524 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1525 } else if (cfg->phy == 0xff) { 1526 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 1527 "WWN=%08X%08X\n", path_status_desc[j].desc, 1528 path_type_desc[i].desc, cfg->cascaded_expander, 1529 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1530 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1531 } else { 1532 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 1533 "WWN=%08X%08X\n", path_status_desc[j].desc, 1534 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 1535 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1536 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1537 } 1538 } 1539 return; 1540 } 1541 } 1542 1543 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 1544 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 1545 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1546 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1547} 1548 1549/** 1550 * ipr_log_fabric_error - Log a fabric error. 1551 * @ioa_cfg: ioa config struct 1552 * @hostrcb: hostrcb struct 1553 * 1554 * Return value: 1555 * none 1556 **/ 1557static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 1558 struct ipr_hostrcb *hostrcb) 1559{ 1560 struct ipr_hostrcb_type_20_error *error; 1561 struct ipr_hostrcb_fabric_desc *fabric; 1562 struct ipr_hostrcb_config_element *cfg; 1563 int i, add_len; 1564 1565 error = &hostrcb->hcam.u.error.u.type_20_error; 1566 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1567 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 1568 1569 add_len = be32_to_cpu(hostrcb->hcam.length) - 1570 (offsetof(struct ipr_hostrcb_error, u) + 1571 offsetof(struct ipr_hostrcb_type_20_error, desc)); 1572 1573 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 1574 ipr_log_fabric_path(hostrcb, fabric); 1575 for_each_fabric_cfg(fabric, cfg) 1576 ipr_log_path_elem(hostrcb, cfg); 1577 1578 add_len -= be16_to_cpu(fabric->length); 1579 fabric = (struct ipr_hostrcb_fabric_desc *) 1580 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 1581 } 1582 1583 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 1584} 1585 1586/** 1587 * ipr_log_generic_error - Log an adapter error. 1588 * @ioa_cfg: ioa config struct 1589 * @hostrcb: hostrcb struct 1590 * 1591 * Return value: 1592 * none 1593 **/ 1594static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 1595 struct ipr_hostrcb *hostrcb) 1596{ 1597 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 1598 be32_to_cpu(hostrcb->hcam.length)); 1599} 1600 1601/** 1602 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 1603 * @ioasc: IOASC 1604 * 1605 * This function will return the index of into the ipr_error_table 1606 * for the specified IOASC. If the IOASC is not in the table, 1607 * 0 will be returned, which points to the entry used for unknown errors. 1608 * 1609 * Return value: 1610 * index into the ipr_error_table 1611 **/ 1612static u32 ipr_get_error(u32 ioasc) 1613{ 1614 int i; 1615 1616 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 1617 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 1618 return i; 1619 1620 return 0; 1621} 1622 1623/** 1624 * ipr_handle_log_data - Log an adapter error. 1625 * @ioa_cfg: ioa config struct 1626 * @hostrcb: hostrcb struct 1627 * 1628 * This function logs an adapter error to the system. 1629 * 1630 * Return value: 1631 * none 1632 **/ 1633static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 1634 struct ipr_hostrcb *hostrcb) 1635{ 1636 u32 ioasc; 1637 int error_index; 1638 1639 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 1640 return; 1641 1642 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 1643 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 1644 1645 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 1646 1647 if (ioasc == IPR_IOASC_BUS_WAS_RESET || 1648 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { 1649 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 1650 scsi_report_bus_reset(ioa_cfg->host, 1651 hostrcb->hcam.u.error.failing_dev_res_addr.bus); 1652 } 1653 1654 error_index = ipr_get_error(ioasc); 1655 1656 if (!ipr_error_table[error_index].log_hcam) 1657 return; 1658 1659 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 1660 1661 /* Set indication we have logged an error */ 1662 ioa_cfg->errors_logged++; 1663 1664 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 1665 return; 1666 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 1667 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 1668 1669 switch (hostrcb->hcam.overlay_id) { 1670 case IPR_HOST_RCB_OVERLAY_ID_2: 1671 ipr_log_cache_error(ioa_cfg, hostrcb); 1672 break; 1673 case IPR_HOST_RCB_OVERLAY_ID_3: 1674 ipr_log_config_error(ioa_cfg, hostrcb); 1675 break; 1676 case IPR_HOST_RCB_OVERLAY_ID_4: 1677 case IPR_HOST_RCB_OVERLAY_ID_6: 1678 ipr_log_array_error(ioa_cfg, hostrcb); 1679 break; 1680 case IPR_HOST_RCB_OVERLAY_ID_7: 1681 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 1682 break; 1683 case IPR_HOST_RCB_OVERLAY_ID_12: 1684 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 1685 break; 1686 case IPR_HOST_RCB_OVERLAY_ID_13: 1687 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 1688 break; 1689 case IPR_HOST_RCB_OVERLAY_ID_14: 1690 case IPR_HOST_RCB_OVERLAY_ID_16: 1691 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 1692 break; 1693 case IPR_HOST_RCB_OVERLAY_ID_17: 1694 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 1695 break; 1696 case IPR_HOST_RCB_OVERLAY_ID_20: 1697 ipr_log_fabric_error(ioa_cfg, hostrcb); 1698 break; 1699 case IPR_HOST_RCB_OVERLAY_ID_1: 1700 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 1701 default: 1702 ipr_log_generic_error(ioa_cfg, hostrcb); 1703 break; 1704 } 1705} 1706 1707/** 1708 * ipr_process_error - Op done function for an adapter error log. 1709 * @ipr_cmd: ipr command struct 1710 * 1711 * This function is the op done function for an error log host 1712 * controlled async from the adapter. It will log the error and 1713 * send the HCAM back to the adapter. 1714 * 1715 * Return value: 1716 * none 1717 **/ 1718static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 1719{ 1720 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1721 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1722 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 1723 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 1724 1725 list_del(&hostrcb->queue); 1726 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1727 1728 if (!ioasc) { 1729 ipr_handle_log_data(ioa_cfg, hostrcb); 1730 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 1731 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 1732 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 1733 dev_err(&ioa_cfg->pdev->dev, 1734 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1735 } 1736 1737 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 1738} 1739 1740/** 1741 * ipr_timeout - An internally generated op has timed out. 1742 * @ipr_cmd: ipr command struct 1743 * 1744 * This function blocks host requests and initiates an 1745 * adapter reset. 1746 * 1747 * Return value: 1748 * none 1749 **/ 1750static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 1751{ 1752 unsigned long lock_flags = 0; 1753 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1754 1755 ENTER; 1756 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 1757 1758 ioa_cfg->errors_logged++; 1759 dev_err(&ioa_cfg->pdev->dev, 1760 "Adapter being reset due to command timeout.\n"); 1761 1762 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 1763 ioa_cfg->sdt_state = GET_DUMP; 1764 1765 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 1766 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 1767 1768 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 1769 LEAVE; 1770} 1771 1772/** 1773 * ipr_oper_timeout - Adapter timed out transitioning to operational 1774 * @ipr_cmd: ipr command struct 1775 * 1776 * This function blocks host requests and initiates an 1777 * adapter reset. 1778 * 1779 * Return value: 1780 * none 1781 **/ 1782static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 1783{ 1784 unsigned long lock_flags = 0; 1785 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1786 1787 ENTER; 1788 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 1789 1790 ioa_cfg->errors_logged++; 1791 dev_err(&ioa_cfg->pdev->dev, 1792 "Adapter timed out transitioning to operational.\n"); 1793 1794 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 1795 ioa_cfg->sdt_state = GET_DUMP; 1796 1797 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 1798 if (ipr_fastfail) 1799 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 1800 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 1801 } 1802 1803 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 1804 LEAVE; 1805} 1806 1807/** 1808 * ipr_reset_reload - Reset/Reload the IOA 1809 * @ioa_cfg: ioa config struct 1810 * @shutdown_type: shutdown type 1811 * 1812 * This function resets the adapter and re-initializes it. 1813 * This function assumes that all new host commands have been stopped. 1814 * Return value: 1815 * SUCCESS / FAILED 1816 **/ 1817static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 1818 enum ipr_shutdown_type shutdown_type) 1819{ 1820 if (!ioa_cfg->in_reset_reload) 1821 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 1822 1823 spin_unlock_irq(ioa_cfg->host->host_lock); 1824 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 1825 spin_lock_irq(ioa_cfg->host->host_lock); 1826 1827 /* If we got hit with a host reset while we were already resetting 1828 the adapter for some reason, and the reset failed. */ 1829 if (ioa_cfg->ioa_is_dead) { 1830 ipr_trace; 1831 return FAILED; 1832 } 1833 1834 return SUCCESS; 1835} 1836 1837/** 1838 * ipr_find_ses_entry - Find matching SES in SES table 1839 * @res: resource entry struct of SES 1840 * 1841 * Return value: 1842 * pointer to SES table entry / NULL on failure 1843 **/ 1844static const struct ipr_ses_table_entry * 1845ipr_find_ses_entry(struct ipr_resource_entry *res) 1846{ 1847 int i, j, matches; 1848 const struct ipr_ses_table_entry *ste = ipr_ses_table; 1849 1850 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 1851 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 1852 if (ste->compare_product_id_byte[j] == 'X') { 1853 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) 1854 matches++; 1855 else 1856 break; 1857 } else 1858 matches++; 1859 } 1860 1861 if (matches == IPR_PROD_ID_LEN) 1862 return ste; 1863 } 1864 1865 return NULL; 1866} 1867 1868/** 1869 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 1870 * @ioa_cfg: ioa config struct 1871 * @bus: SCSI bus 1872 * @bus_width: bus width 1873 * 1874 * Return value: 1875 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 1876 * For a 2-byte wide SCSI bus, the maximum transfer speed is 1877 * twice the maximum transfer rate (e.g. for a wide enabled bus, 1878 * max 160MHz = max 320MB/sec). 1879 **/ 1880static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 1881{ 1882 struct ipr_resource_entry *res; 1883 const struct ipr_ses_table_entry *ste; 1884 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 1885 1886 /* Loop through each config table entry in the config table buffer */ 1887 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1888 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) 1889 continue; 1890 1891 if (bus != res->cfgte.res_addr.bus) 1892 continue; 1893 1894 if (!(ste = ipr_find_ses_entry(res))) 1895 continue; 1896 1897 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 1898 } 1899 1900 return max_xfer_rate; 1901} 1902 1903/** 1904 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 1905 * @ioa_cfg: ioa config struct 1906 * @max_delay: max delay in micro-seconds to wait 1907 * 1908 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 1909 * 1910 * Return value: 1911 * 0 on success / other on failure 1912 **/ 1913static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 1914{ 1915 volatile u32 pcii_reg; 1916 int delay = 1; 1917 1918 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 1919 while (delay < max_delay) { 1920 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 1921 1922 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 1923 return 0; 1924 1925 /* udelay cannot be used if delay is more than a few milliseconds */ 1926 if ((delay / 1000) > MAX_UDELAY_MS) 1927 mdelay(delay / 1000); 1928 else 1929 udelay(delay); 1930 1931 delay += delay; 1932 } 1933 return -EIO; 1934} 1935 1936/** 1937 * ipr_get_ldump_data_section - Dump IOA memory 1938 * @ioa_cfg: ioa config struct 1939 * @start_addr: adapter address to dump 1940 * @dest: destination kernel buffer 1941 * @length_in_words: length to dump in 4 byte words 1942 * 1943 * Return value: 1944 * 0 on success / -EIO on failure 1945 **/ 1946static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 1947 u32 start_addr, 1948 __be32 *dest, u32 length_in_words) 1949{ 1950 volatile u32 temp_pcii_reg; 1951 int i, delay = 0; 1952 1953 /* Write IOA interrupt reg starting LDUMP state */ 1954 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 1955 ioa_cfg->regs.set_uproc_interrupt_reg); 1956 1957 /* Wait for IO debug acknowledge */ 1958 if (ipr_wait_iodbg_ack(ioa_cfg, 1959 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 1960 dev_err(&ioa_cfg->pdev->dev, 1961 "IOA dump long data transfer timeout\n"); 1962 return -EIO; 1963 } 1964 1965 /* Signal LDUMP interlocked - clear IO debug ack */ 1966 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 1967 ioa_cfg->regs.clr_interrupt_reg); 1968 1969 /* Write Mailbox with starting address */ 1970 writel(start_addr, ioa_cfg->ioa_mailbox); 1971 1972 /* Signal address valid - clear IOA Reset alert */ 1973 writel(IPR_UPROCI_RESET_ALERT, 1974 ioa_cfg->regs.clr_uproc_interrupt_reg); 1975 1976 for (i = 0; i < length_in_words; i++) { 1977 /* Wait for IO debug acknowledge */ 1978 if (ipr_wait_iodbg_ack(ioa_cfg, 1979 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 1980 dev_err(&ioa_cfg->pdev->dev, 1981 "IOA dump short data transfer timeout\n"); 1982 return -EIO; 1983 } 1984 1985 /* Read data from mailbox and increment destination pointer */ 1986 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 1987 dest++; 1988 1989 /* For all but the last word of data, signal data received */ 1990 if (i < (length_in_words - 1)) { 1991 /* Signal dump data received - Clear IO debug Ack */ 1992 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 1993 ioa_cfg->regs.clr_interrupt_reg); 1994 } 1995 } 1996 1997 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 1998 writel(IPR_UPROCI_RESET_ALERT, 1999 ioa_cfg->regs.set_uproc_interrupt_reg); 2000 2001 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2002 ioa_cfg->regs.clr_uproc_interrupt_reg); 2003 2004 /* Signal dump data received - Clear IO debug Ack */ 2005 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2006 ioa_cfg->regs.clr_interrupt_reg); 2007 2008 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2009 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2010 temp_pcii_reg = 2011 readl(ioa_cfg->regs.sense_uproc_interrupt_reg); 2012 2013 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2014 return 0; 2015 2016 udelay(10); 2017 delay += 10; 2018 } 2019 2020 return 0; 2021} 2022 2023#ifdef CONFIG_SCSI_IPR_DUMP 2024/** 2025 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2026 * @ioa_cfg: ioa config struct 2027 * @pci_address: adapter address 2028 * @length: length of data to copy 2029 * 2030 * Copy data from PCI adapter to kernel buffer. 2031 * Note: length MUST be a 4 byte multiple 2032 * Return value: 2033 * 0 on success / other on failure 2034 **/ 2035static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2036 unsigned long pci_address, u32 length) 2037{ 2038 int bytes_copied = 0; 2039 int cur_len, rc, rem_len, rem_page_len; 2040 __be32 *page; 2041 unsigned long lock_flags = 0; 2042 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2043 2044 while (bytes_copied < length && 2045 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { 2046 if (ioa_dump->page_offset >= PAGE_SIZE || 2047 ioa_dump->page_offset == 0) { 2048 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2049 2050 if (!page) { 2051 ipr_trace; 2052 return bytes_copied; 2053 } 2054 2055 ioa_dump->page_offset = 0; 2056 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2057 ioa_dump->next_page_index++; 2058 } else 2059 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2060 2061 rem_len = length - bytes_copied; 2062 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2063 cur_len = min(rem_len, rem_page_len); 2064 2065 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2066 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2067 rc = -EIO; 2068 } else { 2069 rc = ipr_get_ldump_data_section(ioa_cfg, 2070 pci_address + bytes_copied, 2071 &page[ioa_dump->page_offset / 4], 2072 (cur_len / sizeof(u32))); 2073 } 2074 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2075 2076 if (!rc) { 2077 ioa_dump->page_offset += cur_len; 2078 bytes_copied += cur_len; 2079 } else { 2080 ipr_trace; 2081 break; 2082 } 2083 schedule(); 2084 } 2085 2086 return bytes_copied; 2087} 2088 2089/** 2090 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2091 * @hdr: dump entry header struct 2092 * 2093 * Return value: 2094 * nothing 2095 **/ 2096static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2097{ 2098 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2099 hdr->num_elems = 1; 2100 hdr->offset = sizeof(*hdr); 2101 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2102} 2103 2104/** 2105 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2106 * @ioa_cfg: ioa config struct 2107 * @driver_dump: driver dump struct 2108 * 2109 * Return value: 2110 * nothing 2111 **/ 2112static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2113 struct ipr_driver_dump *driver_dump) 2114{ 2115 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2116 2117 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2118 driver_dump->ioa_type_entry.hdr.len = 2119 sizeof(struct ipr_dump_ioa_type_entry) - 2120 sizeof(struct ipr_dump_entry_header); 2121 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2122 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2123 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2124 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2125 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2126 ucode_vpd->minor_release[1]; 2127 driver_dump->hdr.num_entries++; 2128} 2129 2130/** 2131 * ipr_dump_version_data - Fill in the driver version in the dump. 2132 * @ioa_cfg: ioa config struct 2133 * @driver_dump: driver dump struct 2134 * 2135 * Return value: 2136 * nothing 2137 **/ 2138static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2139 struct ipr_driver_dump *driver_dump) 2140{ 2141 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2142 driver_dump->version_entry.hdr.len = 2143 sizeof(struct ipr_dump_version_entry) - 2144 sizeof(struct ipr_dump_entry_header); 2145 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2146 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2147 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2148 driver_dump->hdr.num_entries++; 2149} 2150 2151/** 2152 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2153 * @ioa_cfg: ioa config struct 2154 * @driver_dump: driver dump struct 2155 * 2156 * Return value: 2157 * nothing 2158 **/ 2159static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2160 struct ipr_driver_dump *driver_dump) 2161{ 2162 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2163 driver_dump->trace_entry.hdr.len = 2164 sizeof(struct ipr_dump_trace_entry) - 2165 sizeof(struct ipr_dump_entry_header); 2166 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2167 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2168 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2169 driver_dump->hdr.num_entries++; 2170} 2171 2172/** 2173 * ipr_dump_location_data - Fill in the IOA location in the dump. 2174 * @ioa_cfg: ioa config struct 2175 * @driver_dump: driver dump struct 2176 * 2177 * Return value: 2178 * nothing 2179 **/ 2180static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2181 struct ipr_driver_dump *driver_dump) 2182{ 2183 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2184 driver_dump->location_entry.hdr.len = 2185 sizeof(struct ipr_dump_location_entry) - 2186 sizeof(struct ipr_dump_entry_header); 2187 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2188 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2189 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 2190 driver_dump->hdr.num_entries++; 2191} 2192 2193/** 2194 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2195 * @ioa_cfg: ioa config struct 2196 * @dump: dump struct 2197 * 2198 * Return value: 2199 * nothing 2200 **/ 2201static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2202{ 2203 unsigned long start_addr, sdt_word; 2204 unsigned long lock_flags = 0; 2205 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2206 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2207 u32 num_entries, start_off, end_off; 2208 u32 bytes_to_copy, bytes_copied, rc; 2209 struct ipr_sdt *sdt; 2210 int i; 2211 2212 ENTER; 2213 2214 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2215 2216 if (ioa_cfg->sdt_state != GET_DUMP) { 2217 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2218 return; 2219 } 2220 2221 start_addr = readl(ioa_cfg->ioa_mailbox); 2222 2223 if (!ipr_sdt_is_fmt2(start_addr)) { 2224 dev_err(&ioa_cfg->pdev->dev, 2225 "Invalid dump table format: %lx\n", start_addr); 2226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2227 return; 2228 } 2229 2230 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2231 2232 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2233 2234 /* Initialize the overall dump header */ 2235 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2236 driver_dump->hdr.num_entries = 1; 2237 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2238 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2239 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2240 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2241 2242 ipr_dump_version_data(ioa_cfg, driver_dump); 2243 ipr_dump_location_data(ioa_cfg, driver_dump); 2244 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2245 ipr_dump_trace_data(ioa_cfg, driver_dump); 2246 2247 /* Update dump_header */ 2248 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2249 2250 /* IOA Dump entry */ 2251 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2252 ioa_dump->format = IPR_SDT_FMT2; 2253 ioa_dump->hdr.len = 0; 2254 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2255 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2256 2257 /* First entries in sdt are actually a list of dump addresses and 2258 lengths to gather the real dump data. sdt represents the pointer 2259 to the ioa generated dump table. Dump data will be extracted based 2260 on entries in this table */ 2261 sdt = &ioa_dump->sdt; 2262 2263 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2264 sizeof(struct ipr_sdt) / sizeof(__be32)); 2265 2266 /* Smart Dump table is ready to use and the first entry is valid */ 2267 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { 2268 dev_err(&ioa_cfg->pdev->dev, 2269 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2270 rc, be32_to_cpu(sdt->hdr.state)); 2271 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2272 ioa_cfg->sdt_state = DUMP_OBTAINED; 2273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2274 return; 2275 } 2276 2277 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2278 2279 if (num_entries > IPR_NUM_SDT_ENTRIES) 2280 num_entries = IPR_NUM_SDT_ENTRIES; 2281 2282 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2283 2284 for (i = 0; i < num_entries; i++) { 2285 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { 2286 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2287 break; 2288 } 2289 2290 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 2291 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); 2292 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 2293 end_off = be32_to_cpu(sdt->entry[i].end_offset); 2294 2295 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { 2296 bytes_to_copy = end_off - start_off; 2297 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { 2298 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 2299 continue; 2300 } 2301 2302 /* Copy data from adapter to driver buffers */ 2303 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 2304 bytes_to_copy); 2305 2306 ioa_dump->hdr.len += bytes_copied; 2307 2308 if (bytes_copied != bytes_to_copy) { 2309 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2310 break; 2311 } 2312 } 2313 } 2314 } 2315 2316 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 2317 2318 /* Update dump_header */ 2319 driver_dump->hdr.len += ioa_dump->hdr.len; 2320 wmb(); 2321 ioa_cfg->sdt_state = DUMP_OBTAINED; 2322 LEAVE; 2323} 2324 2325#else 2326#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 2327#endif 2328 2329/** 2330 * ipr_release_dump - Free adapter dump memory 2331 * @kref: kref struct 2332 * 2333 * Return value: 2334 * nothing 2335 **/ 2336static void ipr_release_dump(struct kref *kref) 2337{ 2338 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 2339 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 2340 unsigned long lock_flags = 0; 2341 int i; 2342 2343 ENTER; 2344 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2345 ioa_cfg->dump = NULL; 2346 ioa_cfg->sdt_state = INACTIVE; 2347 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2348 2349 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 2350 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 2351 2352 kfree(dump); 2353 LEAVE; 2354} 2355 2356/** 2357 * ipr_worker_thread - Worker thread 2358 * @work: ioa config struct 2359 * 2360 * Called at task level from a work thread. This function takes care 2361 * of adding and removing device from the mid-layer as configuration 2362 * changes are detected by the adapter. 2363 * 2364 * Return value: 2365 * nothing 2366 **/ 2367static void ipr_worker_thread(struct work_struct *work) 2368{ 2369 unsigned long lock_flags; 2370 struct ipr_resource_entry *res; 2371 struct scsi_device *sdev; 2372 struct ipr_dump *dump; 2373 struct ipr_ioa_cfg *ioa_cfg = 2374 container_of(work, struct ipr_ioa_cfg, work_q); 2375 u8 bus, target, lun; 2376 int did_work; 2377 2378 ENTER; 2379 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2380 2381 if (ioa_cfg->sdt_state == GET_DUMP) { 2382 dump = ioa_cfg->dump; 2383 if (!dump) { 2384 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2385 return; 2386 } 2387 kref_get(&dump->kref); 2388 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2389 ipr_get_ioa_dump(ioa_cfg, dump); 2390 kref_put(&dump->kref, ipr_release_dump); 2391 2392 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2393 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 2394 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2395 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2396 return; 2397 } 2398 2399restart: 2400 do { 2401 did_work = 0; 2402 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 2403 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2404 return; 2405 } 2406 2407 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2408 if (res->del_from_ml && res->sdev) { 2409 did_work = 1; 2410 sdev = res->sdev; 2411 if (!scsi_device_get(sdev)) { 2412 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 2413 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2414 scsi_remove_device(sdev); 2415 scsi_device_put(sdev); 2416 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2417 } 2418 break; 2419 } 2420 } 2421 } while(did_work); 2422 2423 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2424 if (res->add_to_ml) { 2425 bus = res->cfgte.res_addr.bus; 2426 target = res->cfgte.res_addr.target; 2427 lun = res->cfgte.res_addr.lun; 2428 res->add_to_ml = 0; 2429 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2430 scsi_add_device(ioa_cfg->host, bus, target, lun); 2431 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2432 goto restart; 2433 } 2434 } 2435 2436 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2437 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 2438 LEAVE; 2439} 2440 2441#ifdef CONFIG_SCSI_IPR_TRACE 2442/** 2443 * ipr_read_trace - Dump the adapter trace 2444 * @kobj: kobject struct 2445 * @bin_attr: bin_attribute struct 2446 * @buf: buffer 2447 * @off: offset 2448 * @count: buffer size 2449 * 2450 * Return value: 2451 * number of bytes printed to buffer 2452 **/ 2453static ssize_t ipr_read_trace(struct kobject *kobj, 2454 struct bin_attribute *bin_attr, 2455 char *buf, loff_t off, size_t count) 2456{ 2457 struct device *dev = container_of(kobj, struct device, kobj); 2458 struct Scsi_Host *shost = class_to_shost(dev); 2459 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2460 unsigned long lock_flags = 0; 2461 ssize_t ret; 2462 2463 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2464 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 2465 IPR_TRACE_SIZE); 2466 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2467 2468 return ret; 2469} 2470 2471static struct bin_attribute ipr_trace_attr = { 2472 .attr = { 2473 .name = "trace", 2474 .mode = S_IRUGO, 2475 }, 2476 .size = 0, 2477 .read = ipr_read_trace, 2478}; 2479#endif 2480 2481static const struct { 2482 enum ipr_cache_state state; 2483 char *name; 2484} cache_state [] = { 2485 { CACHE_NONE, "none" }, 2486 { CACHE_DISABLED, "disabled" }, 2487 { CACHE_ENABLED, "enabled" } 2488}; 2489 2490/** 2491 * ipr_show_write_caching - Show the write caching attribute 2492 * @dev: device struct 2493 * @buf: buffer 2494 * 2495 * Return value: 2496 * number of bytes printed to buffer 2497 **/ 2498static ssize_t ipr_show_write_caching(struct device *dev, 2499 struct device_attribute *attr, char *buf) 2500{ 2501 struct Scsi_Host *shost = class_to_shost(dev); 2502 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2503 unsigned long lock_flags = 0; 2504 int i, len = 0; 2505 2506 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2507 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2508 if (cache_state[i].state == ioa_cfg->cache_state) { 2509 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); 2510 break; 2511 } 2512 } 2513 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2514 return len; 2515} 2516 2517 2518/** 2519 * ipr_store_write_caching - Enable/disable adapter write cache 2520 * @dev: device struct 2521 * @buf: buffer 2522 * @count: buffer size 2523 * 2524 * This function will enable/disable adapter write cache. 2525 * 2526 * Return value: 2527 * count on success / other on failure 2528 **/ 2529static ssize_t ipr_store_write_caching(struct device *dev, 2530 struct device_attribute *attr, 2531 const char *buf, size_t count) 2532{ 2533 struct Scsi_Host *shost = class_to_shost(dev); 2534 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2535 unsigned long lock_flags = 0; 2536 enum ipr_cache_state new_state = CACHE_INVALID; 2537 int i; 2538 2539 if (!capable(CAP_SYS_ADMIN)) 2540 return -EACCES; 2541 if (ioa_cfg->cache_state == CACHE_NONE) 2542 return -EINVAL; 2543 2544 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2545 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { 2546 new_state = cache_state[i].state; 2547 break; 2548 } 2549 } 2550 2551 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) 2552 return -EINVAL; 2553 2554 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2555 if (ioa_cfg->cache_state == new_state) { 2556 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2557 return count; 2558 } 2559 2560 ioa_cfg->cache_state = new_state; 2561 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", 2562 new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); 2563 if (!ioa_cfg->in_reset_reload) 2564 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2565 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2566 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2567 2568 return count; 2569} 2570 2571static struct device_attribute ipr_ioa_cache_attr = { 2572 .attr = { 2573 .name = "write_cache", 2574 .mode = S_IRUGO | S_IWUSR, 2575 }, 2576 .show = ipr_show_write_caching, 2577 .store = ipr_store_write_caching 2578}; 2579 2580/** 2581 * ipr_show_fw_version - Show the firmware version 2582 * @dev: class device struct 2583 * @buf: buffer 2584 * 2585 * Return value: 2586 * number of bytes printed to buffer 2587 **/ 2588static ssize_t ipr_show_fw_version(struct device *dev, 2589 struct device_attribute *attr, char *buf) 2590{ 2591 struct Scsi_Host *shost = class_to_shost(dev); 2592 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2593 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2594 unsigned long lock_flags = 0; 2595 int len; 2596 2597 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2598 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 2599 ucode_vpd->major_release, ucode_vpd->card_type, 2600 ucode_vpd->minor_release[0], 2601 ucode_vpd->minor_release[1]); 2602 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2603 return len; 2604} 2605 2606static struct device_attribute ipr_fw_version_attr = { 2607 .attr = { 2608 .name = "fw_version", 2609 .mode = S_IRUGO, 2610 }, 2611 .show = ipr_show_fw_version, 2612}; 2613 2614/** 2615 * ipr_show_log_level - Show the adapter's error logging level 2616 * @dev: class device struct 2617 * @buf: buffer 2618 * 2619 * Return value: 2620 * number of bytes printed to buffer 2621 **/ 2622static ssize_t ipr_show_log_level(struct device *dev, 2623 struct device_attribute *attr, char *buf) 2624{ 2625 struct Scsi_Host *shost = class_to_shost(dev); 2626 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2627 unsigned long lock_flags = 0; 2628 int len; 2629 2630 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2631 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 2632 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2633 return len; 2634} 2635 2636/** 2637 * ipr_store_log_level - Change the adapter's error logging level 2638 * @dev: class device struct 2639 * @buf: buffer 2640 * 2641 * Return value: 2642 * number of bytes printed to buffer 2643 **/ 2644static ssize_t ipr_store_log_level(struct device *dev, 2645 struct device_attribute *attr, 2646 const char *buf, size_t count) 2647{ 2648 struct Scsi_Host *shost = class_to_shost(dev); 2649 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2650 unsigned long lock_flags = 0; 2651 2652 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2653 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 2654 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2655 return strlen(buf); 2656} 2657 2658static struct device_attribute ipr_log_level_attr = { 2659 .attr = { 2660 .name = "log_level", 2661 .mode = S_IRUGO | S_IWUSR, 2662 }, 2663 .show = ipr_show_log_level, 2664 .store = ipr_store_log_level 2665}; 2666 2667/** 2668 * ipr_store_diagnostics - IOA Diagnostics interface 2669 * @dev: device struct 2670 * @buf: buffer 2671 * @count: buffer size 2672 * 2673 * This function will reset the adapter and wait a reasonable 2674 * amount of time for any errors that the adapter might log. 2675 * 2676 * Return value: 2677 * count on success / other on failure 2678 **/ 2679static ssize_t ipr_store_diagnostics(struct device *dev, 2680 struct device_attribute *attr, 2681 const char *buf, size_t count) 2682{ 2683 struct Scsi_Host *shost = class_to_shost(dev); 2684 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2685 unsigned long lock_flags = 0; 2686 int rc = count; 2687 2688 if (!capable(CAP_SYS_ADMIN)) 2689 return -EACCES; 2690 2691 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2692 while(ioa_cfg->in_reset_reload) { 2693 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2694 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2695 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2696 } 2697 2698 ioa_cfg->errors_logged = 0; 2699 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2700 2701 if (ioa_cfg->in_reset_reload) { 2702 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2703 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2704 2705 /* Wait for a second for any errors to be logged */ 2706 msleep(1000); 2707 } else { 2708 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2709 return -EIO; 2710 } 2711 2712 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2713 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 2714 rc = -EIO; 2715 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2716 2717 return rc; 2718} 2719 2720static struct device_attribute ipr_diagnostics_attr = { 2721 .attr = { 2722 .name = "run_diagnostics", 2723 .mode = S_IWUSR, 2724 }, 2725 .store = ipr_store_diagnostics 2726}; 2727 2728/** 2729 * ipr_show_adapter_state - Show the adapter's state 2730 * @class_dev: device struct 2731 * @buf: buffer 2732 * 2733 * Return value: 2734 * number of bytes printed to buffer 2735 **/ 2736static ssize_t ipr_show_adapter_state(struct device *dev, 2737 struct device_attribute *attr, char *buf) 2738{ 2739 struct Scsi_Host *shost = class_to_shost(dev); 2740 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2741 unsigned long lock_flags = 0; 2742 int len; 2743 2744 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2745 if (ioa_cfg->ioa_is_dead) 2746 len = snprintf(buf, PAGE_SIZE, "offline\n"); 2747 else 2748 len = snprintf(buf, PAGE_SIZE, "online\n"); 2749 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2750 return len; 2751} 2752 2753/** 2754 * ipr_store_adapter_state - Change adapter state 2755 * @dev: device struct 2756 * @buf: buffer 2757 * @count: buffer size 2758 * 2759 * This function will change the adapter's state. 2760 * 2761 * Return value: 2762 * count on success / other on failure 2763 **/ 2764static ssize_t ipr_store_adapter_state(struct device *dev, 2765 struct device_attribute *attr, 2766 const char *buf, size_t count) 2767{ 2768 struct Scsi_Host *shost = class_to_shost(dev); 2769 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2770 unsigned long lock_flags; 2771 int result = count; 2772 2773 if (!capable(CAP_SYS_ADMIN)) 2774 return -EACCES; 2775 2776 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2777 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 2778 ioa_cfg->ioa_is_dead = 0; 2779 ioa_cfg->reset_retries = 0; 2780 ioa_cfg->in_ioa_bringdown = 0; 2781 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2782 } 2783 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2784 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2785 2786 return result; 2787} 2788 2789static struct device_attribute ipr_ioa_state_attr = { 2790 .attr = { 2791 .name = "online_state", 2792 .mode = S_IRUGO | S_IWUSR, 2793 }, 2794 .show = ipr_show_adapter_state, 2795 .store = ipr_store_adapter_state 2796}; 2797 2798/** 2799 * ipr_store_reset_adapter - Reset the adapter 2800 * @dev: device struct 2801 * @buf: buffer 2802 * @count: buffer size 2803 * 2804 * This function will reset the adapter. 2805 * 2806 * Return value: 2807 * count on success / other on failure 2808 **/ 2809static ssize_t ipr_store_reset_adapter(struct device *dev, 2810 struct device_attribute *attr, 2811 const char *buf, size_t count) 2812{ 2813 struct Scsi_Host *shost = class_to_shost(dev); 2814 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2815 unsigned long lock_flags; 2816 int result = count; 2817 2818 if (!capable(CAP_SYS_ADMIN)) 2819 return -EACCES; 2820 2821 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2822 if (!ioa_cfg->in_reset_reload) 2823 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2824 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2825 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2826 2827 return result; 2828} 2829 2830static struct device_attribute ipr_ioa_reset_attr = { 2831 .attr = { 2832 .name = "reset_host", 2833 .mode = S_IWUSR, 2834 }, 2835 .store = ipr_store_reset_adapter 2836}; 2837 2838/** 2839 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 2840 * @buf_len: buffer length 2841 * 2842 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 2843 * list to use for microcode download 2844 * 2845 * Return value: 2846 * pointer to sglist / NULL on failure 2847 **/ 2848static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 2849{ 2850 int sg_size, order, bsize_elem, num_elem, i, j; 2851 struct ipr_sglist *sglist; 2852 struct scatterlist *scatterlist; 2853 struct page *page; 2854 2855 /* Get the minimum size per scatter/gather element */ 2856 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 2857 2858 /* Get the actual size per element */ 2859 order = get_order(sg_size); 2860 2861 /* Determine the actual number of bytes per element */ 2862 bsize_elem = PAGE_SIZE * (1 << order); 2863 2864 /* Determine the actual number of sg entries needed */ 2865 if (buf_len % bsize_elem) 2866 num_elem = (buf_len / bsize_elem) + 1; 2867 else 2868 num_elem = buf_len / bsize_elem; 2869 2870 /* Allocate a scatter/gather list for the DMA */ 2871 sglist = kzalloc(sizeof(struct ipr_sglist) + 2872 (sizeof(struct scatterlist) * (num_elem - 1)), 2873 GFP_KERNEL); 2874 2875 if (sglist == NULL) { 2876 ipr_trace; 2877 return NULL; 2878 } 2879 2880 scatterlist = sglist->scatterlist; 2881 sg_init_table(scatterlist, num_elem); 2882 2883 sglist->order = order; 2884 sglist->num_sg = num_elem; 2885 2886 /* Allocate a bunch of sg elements */ 2887 for (i = 0; i < num_elem; i++) { 2888 page = alloc_pages(GFP_KERNEL, order); 2889 if (!page) { 2890 ipr_trace; 2891 2892 /* Free up what we already allocated */ 2893 for (j = i - 1; j >= 0; j--) 2894 __free_pages(sg_page(&scatterlist[j]), order); 2895 kfree(sglist); 2896 return NULL; 2897 } 2898 2899 sg_set_page(&scatterlist[i], page, 0, 0); 2900 } 2901 2902 return sglist; 2903} 2904 2905/** 2906 * ipr_free_ucode_buffer - Frees a microcode download buffer 2907 * @p_dnld: scatter/gather list pointer 2908 * 2909 * Free a DMA'able ucode download buffer previously allocated with 2910 * ipr_alloc_ucode_buffer 2911 * 2912 * Return value: 2913 * nothing 2914 **/ 2915static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 2916{ 2917 int i; 2918 2919 for (i = 0; i < sglist->num_sg; i++) 2920 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 2921 2922 kfree(sglist); 2923} 2924 2925/** 2926 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 2927 * @sglist: scatter/gather list pointer 2928 * @buffer: buffer pointer 2929 * @len: buffer length 2930 * 2931 * Copy a microcode image from a user buffer into a buffer allocated by 2932 * ipr_alloc_ucode_buffer 2933 * 2934 * Return value: 2935 * 0 on success / other on failure 2936 **/ 2937static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 2938 u8 *buffer, u32 len) 2939{ 2940 int bsize_elem, i, result = 0; 2941 struct scatterlist *scatterlist; 2942 void *kaddr; 2943 2944 /* Determine the actual number of bytes per element */ 2945 bsize_elem = PAGE_SIZE * (1 << sglist->order); 2946 2947 scatterlist = sglist->scatterlist; 2948 2949 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 2950 struct page *page = sg_page(&scatterlist[i]); 2951 2952 kaddr = kmap(page); 2953 memcpy(kaddr, buffer, bsize_elem); 2954 kunmap(page); 2955 2956 scatterlist[i].length = bsize_elem; 2957 2958 if (result != 0) { 2959 ipr_trace; 2960 return result; 2961 } 2962 } 2963 2964 if (len % bsize_elem) { 2965 struct page *page = sg_page(&scatterlist[i]); 2966 2967 kaddr = kmap(page); 2968 memcpy(kaddr, buffer, len % bsize_elem); 2969 kunmap(page); 2970 2971 scatterlist[i].length = len % bsize_elem; 2972 } 2973 2974 sglist->buffer_len = len; 2975 return result; 2976} 2977 2978/** 2979 * ipr_build_ucode_ioadl - Build a microcode download IOADL 2980 * @ipr_cmd: ipr command struct 2981 * @sglist: scatter/gather list 2982 * 2983 * Builds a microcode download IOA data list (IOADL). 2984 * 2985 **/ 2986static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 2987 struct ipr_sglist *sglist) 2988{ 2989 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 2990 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 2991 struct scatterlist *scatterlist = sglist->scatterlist; 2992 int i; 2993 2994 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 2995 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 2996 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); 2997 ioarcb->write_ioadl_len = 2998 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 2999 3000 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3001 ioadl[i].flags_and_data_len = 3002 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3003 ioadl[i].address = 3004 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3005 } 3006 3007 ioadl[i-1].flags_and_data_len |= 3008 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3009} 3010 3011/** 3012 * ipr_update_ioa_ucode - Update IOA's microcode 3013 * @ioa_cfg: ioa config struct 3014 * @sglist: scatter/gather list 3015 * 3016 * Initiate an adapter reset to update the IOA's microcode 3017 * 3018 * Return value: 3019 * 0 on success / -EIO on failure 3020 **/ 3021static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3022 struct ipr_sglist *sglist) 3023{ 3024 unsigned long lock_flags; 3025 3026 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3027 while(ioa_cfg->in_reset_reload) { 3028 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3029 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3030 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3031 } 3032 3033 if (ioa_cfg->ucode_sglist) { 3034 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3035 dev_err(&ioa_cfg->pdev->dev, 3036 "Microcode download already in progress\n"); 3037 return -EIO; 3038 } 3039 3040 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3041 sglist->num_sg, DMA_TO_DEVICE); 3042 3043 if (!sglist->num_dma_sg) { 3044 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3045 dev_err(&ioa_cfg->pdev->dev, 3046 "Failed to map microcode download buffer!\n"); 3047 return -EIO; 3048 } 3049 3050 ioa_cfg->ucode_sglist = sglist; 3051 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3052 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3053 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3054 3055 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3056 ioa_cfg->ucode_sglist = NULL; 3057 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3058 return 0; 3059} 3060 3061/** 3062 * ipr_store_update_fw - Update the firmware on the adapter 3063 * @class_dev: device struct 3064 * @buf: buffer 3065 * @count: buffer size 3066 * 3067 * This function will update the firmware on the adapter. 3068 * 3069 * Return value: 3070 * count on success / other on failure 3071 **/ 3072static ssize_t ipr_store_update_fw(struct device *dev, 3073 struct device_attribute *attr, 3074 const char *buf, size_t count) 3075{ 3076 struct Scsi_Host *shost = class_to_shost(dev); 3077 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3078 struct ipr_ucode_image_header *image_hdr; 3079 const struct firmware *fw_entry; 3080 struct ipr_sglist *sglist; 3081 char fname[100]; 3082 char *src; 3083 int len, result, dnld_size; 3084 3085 if (!capable(CAP_SYS_ADMIN)) 3086 return -EACCES; 3087 3088 len = snprintf(fname, 99, "%s", buf); 3089 fname[len-1] = '\0'; 3090 3091 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3092 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3093 return -EIO; 3094 } 3095 3096 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3097 3098 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3099 (ioa_cfg->vpd_cbs->page3_data.card_type && 3100 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3101 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3102 release_firmware(fw_entry); 3103 return -EINVAL; 3104 } 3105 3106 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3107 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3108 sglist = ipr_alloc_ucode_buffer(dnld_size); 3109 3110 if (!sglist) { 3111 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3112 release_firmware(fw_entry); 3113 return -ENOMEM; 3114 } 3115 3116 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3117 3118 if (result) { 3119 dev_err(&ioa_cfg->pdev->dev, 3120 "Microcode buffer copy to DMA buffer failed\n"); 3121 goto out; 3122 } 3123 3124 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3125 3126 if (!result) 3127 result = count; 3128out: 3129 ipr_free_ucode_buffer(sglist); 3130 release_firmware(fw_entry); 3131 return result; 3132} 3133 3134static struct device_attribute ipr_update_fw_attr = { 3135 .attr = { 3136 .name = "update_fw", 3137 .mode = S_IWUSR, 3138 }, 3139 .store = ipr_store_update_fw 3140}; 3141 3142static struct device_attribute *ipr_ioa_attrs[] = { 3143 &ipr_fw_version_attr, 3144 &ipr_log_level_attr, 3145 &ipr_diagnostics_attr, 3146 &ipr_ioa_state_attr, 3147 &ipr_ioa_reset_attr, 3148 &ipr_update_fw_attr, 3149 &ipr_ioa_cache_attr, 3150 NULL, 3151}; 3152 3153#ifdef CONFIG_SCSI_IPR_DUMP 3154/** 3155 * ipr_read_dump - Dump the adapter 3156 * @kobj: kobject struct 3157 * @bin_attr: bin_attribute struct 3158 * @buf: buffer 3159 * @off: offset 3160 * @count: buffer size 3161 * 3162 * Return value: 3163 * number of bytes printed to buffer 3164 **/ 3165static ssize_t ipr_read_dump(struct kobject *kobj, 3166 struct bin_attribute *bin_attr, 3167 char *buf, loff_t off, size_t count) 3168{ 3169 struct device *cdev = container_of(kobj, struct device, kobj); 3170 struct Scsi_Host *shost = class_to_shost(cdev); 3171 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3172 struct ipr_dump *dump; 3173 unsigned long lock_flags = 0; 3174 char *src; 3175 int len; 3176 size_t rc = count; 3177 3178 if (!capable(CAP_SYS_ADMIN)) 3179 return -EACCES; 3180 3181 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3182 dump = ioa_cfg->dump; 3183 3184 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3185 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3186 return 0; 3187 } 3188 kref_get(&dump->kref); 3189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3190 3191 if (off > dump->driver_dump.hdr.len) { 3192 kref_put(&dump->kref, ipr_release_dump); 3193 return 0; 3194 } 3195 3196 if (off + count > dump->driver_dump.hdr.len) { 3197 count = dump->driver_dump.hdr.len - off; 3198 rc = count; 3199 } 3200 3201 if (count && off < sizeof(dump->driver_dump)) { 3202 if (off + count > sizeof(dump->driver_dump)) 3203 len = sizeof(dump->driver_dump) - off; 3204 else 3205 len = count; 3206 src = (u8 *)&dump->driver_dump + off; 3207 memcpy(buf, src, len); 3208 buf += len; 3209 off += len; 3210 count -= len; 3211 } 3212 3213 off -= sizeof(dump->driver_dump); 3214 3215 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3216 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3217 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3218 else 3219 len = count; 3220 src = (u8 *)&dump->ioa_dump + off; 3221 memcpy(buf, src, len); 3222 buf += len; 3223 off += len; 3224 count -= len; 3225 } 3226 3227 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3228 3229 while (count) { 3230 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3231 len = PAGE_ALIGN(off) - off; 3232 else 3233 len = count; 3234 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3235 src += off & ~PAGE_MASK; 3236 memcpy(buf, src, len); 3237 buf += len; 3238 off += len; 3239 count -= len; 3240 } 3241 3242 kref_put(&dump->kref, ipr_release_dump); 3243 return rc; 3244} 3245 3246/** 3247 * ipr_alloc_dump - Prepare for adapter dump 3248 * @ioa_cfg: ioa config struct 3249 * 3250 * Return value: 3251 * 0 on success / other on failure 3252 **/ 3253static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3254{ 3255 struct ipr_dump *dump; 3256 unsigned long lock_flags = 0; 3257 3258 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3259 3260 if (!dump) { 3261 ipr_err("Dump memory allocation failed\n"); 3262 return -ENOMEM; 3263 } 3264 3265 kref_init(&dump->kref); 3266 dump->ioa_cfg = ioa_cfg; 3267 3268 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3269 3270 if (INACTIVE != ioa_cfg->sdt_state) { 3271 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3272 kfree(dump); 3273 return 0; 3274 } 3275 3276 ioa_cfg->dump = dump; 3277 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3278 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3279 ioa_cfg->dump_taken = 1; 3280 schedule_work(&ioa_cfg->work_q); 3281 } 3282 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3283 3284 return 0; 3285} 3286 3287/** 3288 * ipr_free_dump - Free adapter dump memory 3289 * @ioa_cfg: ioa config struct 3290 * 3291 * Return value: 3292 * 0 on success / other on failure 3293 **/ 3294static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3295{ 3296 struct ipr_dump *dump; 3297 unsigned long lock_flags = 0; 3298 3299 ENTER; 3300 3301 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3302 dump = ioa_cfg->dump; 3303 if (!dump) { 3304 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3305 return 0; 3306 } 3307 3308 ioa_cfg->dump = NULL; 3309 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3310 3311 kref_put(&dump->kref, ipr_release_dump); 3312 3313 LEAVE; 3314 return 0; 3315} 3316 3317/** 3318 * ipr_write_dump - Setup dump state of adapter 3319 * @kobj: kobject struct 3320 * @bin_attr: bin_attribute struct 3321 * @buf: buffer 3322 * @off: offset 3323 * @count: buffer size 3324 * 3325 * Return value: 3326 * number of bytes printed to buffer 3327 **/ 3328static ssize_t ipr_write_dump(struct kobject *kobj, 3329 struct bin_attribute *bin_attr, 3330 char *buf, loff_t off, size_t count) 3331{ 3332 struct device *cdev = container_of(kobj, struct device, kobj); 3333 struct Scsi_Host *shost = class_to_shost(cdev); 3334 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3335 int rc; 3336 3337 if (!capable(CAP_SYS_ADMIN)) 3338 return -EACCES; 3339 3340 if (buf[0] == '1') 3341 rc = ipr_alloc_dump(ioa_cfg); 3342 else if (buf[0] == '0') 3343 rc = ipr_free_dump(ioa_cfg); 3344 else 3345 return -EINVAL; 3346 3347 if (rc) 3348 return rc; 3349 else 3350 return count; 3351} 3352 3353static struct bin_attribute ipr_dump_attr = { 3354 .attr = { 3355 .name = "dump", 3356 .mode = S_IRUSR | S_IWUSR, 3357 }, 3358 .size = 0, 3359 .read = ipr_read_dump, 3360 .write = ipr_write_dump 3361}; 3362#else 3363static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 3364#endif 3365 3366/** 3367 * ipr_change_queue_depth - Change the device's queue depth 3368 * @sdev: scsi device struct 3369 * @qdepth: depth to set 3370 * 3371 * Return value: 3372 * actual depth set 3373 **/ 3374static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) 3375{ 3376 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3377 struct ipr_resource_entry *res; 3378 unsigned long lock_flags = 0; 3379 3380 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3381 res = (struct ipr_resource_entry *)sdev->hostdata; 3382 3383 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 3384 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 3385 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3386 3387 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 3388 return sdev->queue_depth; 3389} 3390 3391/** 3392 * ipr_change_queue_type - Change the device's queue type 3393 * @dsev: scsi device struct 3394 * @tag_type: type of tags to use 3395 * 3396 * Return value: 3397 * actual queue type set 3398 **/ 3399static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 3400{ 3401 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3402 struct ipr_resource_entry *res; 3403 unsigned long lock_flags = 0; 3404 3405 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3406 res = (struct ipr_resource_entry *)sdev->hostdata; 3407 3408 if (res) { 3409 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 3410 /* 3411 * We don't bother quiescing the device here since the 3412 * adapter firmware does it for us. 3413 */ 3414 scsi_set_tag_type(sdev, tag_type); 3415 3416 if (tag_type) 3417 scsi_activate_tcq(sdev, sdev->queue_depth); 3418 else 3419 scsi_deactivate_tcq(sdev, sdev->queue_depth); 3420 } else 3421 tag_type = 0; 3422 } else 3423 tag_type = 0; 3424 3425 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3426 return tag_type; 3427} 3428 3429/** 3430 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 3431 * @dev: device struct 3432 * @buf: buffer 3433 * 3434 * Return value: 3435 * number of bytes printed to buffer 3436 **/ 3437static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 3438{ 3439 struct scsi_device *sdev = to_scsi_device(dev); 3440 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3441 struct ipr_resource_entry *res; 3442 unsigned long lock_flags = 0; 3443 ssize_t len = -ENXIO; 3444 3445 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3446 res = (struct ipr_resource_entry *)sdev->hostdata; 3447 if (res) 3448 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); 3449 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3450 return len; 3451} 3452 3453static struct device_attribute ipr_adapter_handle_attr = { 3454 .attr = { 3455 .name = "adapter_handle", 3456 .mode = S_IRUSR, 3457 }, 3458 .show = ipr_show_adapter_handle 3459}; 3460 3461static struct device_attribute *ipr_dev_attrs[] = { 3462 &ipr_adapter_handle_attr, 3463 NULL, 3464}; 3465 3466/** 3467 * ipr_biosparam - Return the HSC mapping 3468 * @sdev: scsi device struct 3469 * @block_device: block device pointer 3470 * @capacity: capacity of the device 3471 * @parm: Array containing returned HSC values. 3472 * 3473 * This function generates the HSC parms that fdisk uses. 3474 * We want to make sure we return something that places partitions 3475 * on 4k boundaries for best performance with the IOA. 3476 * 3477 * Return value: 3478 * 0 on success 3479 **/ 3480static int ipr_biosparam(struct scsi_device *sdev, 3481 struct block_device *block_device, 3482 sector_t capacity, int *parm) 3483{ 3484 int heads, sectors; 3485 sector_t cylinders; 3486 3487 heads = 128; 3488 sectors = 32; 3489 3490 cylinders = capacity; 3491 sector_div(cylinders, (128 * 32)); 3492 3493 /* return result */ 3494 parm[0] = heads; 3495 parm[1] = sectors; 3496 parm[2] = cylinders; 3497 3498 return 0; 3499} 3500 3501/** 3502 * ipr_find_starget - Find target based on bus/target. 3503 * @starget: scsi target struct 3504 * 3505 * Return value: 3506 * resource entry pointer if found / NULL if not found 3507 **/ 3508static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 3509{ 3510 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3511 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3512 struct ipr_resource_entry *res; 3513 3514 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3515 if ((res->cfgte.res_addr.bus == starget->channel) && 3516 (res->cfgte.res_addr.target == starget->id) && 3517 (res->cfgte.res_addr.lun == 0)) { 3518 return res; 3519 } 3520 } 3521 3522 return NULL; 3523} 3524 3525static struct ata_port_info sata_port_info; 3526 3527/** 3528 * ipr_target_alloc - Prepare for commands to a SCSI target 3529 * @starget: scsi target struct 3530 * 3531 * If the device is a SATA device, this function allocates an 3532 * ATA port with libata, else it does nothing. 3533 * 3534 * Return value: 3535 * 0 on success / non-0 on failure 3536 **/ 3537static int ipr_target_alloc(struct scsi_target *starget) 3538{ 3539 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3540 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3541 struct ipr_sata_port *sata_port; 3542 struct ata_port *ap; 3543 struct ipr_resource_entry *res; 3544 unsigned long lock_flags; 3545 3546 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3547 res = ipr_find_starget(starget); 3548 starget->hostdata = NULL; 3549 3550 if (res && ipr_is_gata(res)) { 3551 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3552 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 3553 if (!sata_port) 3554 return -ENOMEM; 3555 3556 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 3557 if (ap) { 3558 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3559 sata_port->ioa_cfg = ioa_cfg; 3560 sata_port->ap = ap; 3561 sata_port->res = res; 3562 3563 res->sata_port = sata_port; 3564 ap->private_data = sata_port; 3565 starget->hostdata = sata_port; 3566 } else { 3567 kfree(sata_port); 3568 return -ENOMEM; 3569 } 3570 } 3571 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3572 3573 return 0; 3574} 3575 3576/** 3577 * ipr_target_destroy - Destroy a SCSI target 3578 * @starget: scsi target struct 3579 * 3580 * If the device was a SATA device, this function frees the libata 3581 * ATA port, else it does nothing. 3582 * 3583 **/ 3584static void ipr_target_destroy(struct scsi_target *starget) 3585{ 3586 struct ipr_sata_port *sata_port = starget->hostdata; 3587 3588 if (sata_port) { 3589 starget->hostdata = NULL; 3590 ata_sas_port_destroy(sata_port->ap); 3591 kfree(sata_port); 3592 } 3593} 3594 3595/** 3596 * ipr_find_sdev - Find device based on bus/target/lun. 3597 * @sdev: scsi device struct 3598 * 3599 * Return value: 3600 * resource entry pointer if found / NULL if not found 3601 **/ 3602static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 3603{ 3604 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3605 struct ipr_resource_entry *res; 3606 3607 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3608 if ((res->cfgte.res_addr.bus == sdev->channel) && 3609 (res->cfgte.res_addr.target == sdev->id) && 3610 (res->cfgte.res_addr.lun == sdev->lun)) 3611 return res; 3612 } 3613 3614 return NULL; 3615} 3616 3617/** 3618 * ipr_slave_destroy - Unconfigure a SCSI device 3619 * @sdev: scsi device struct 3620 * 3621 * Return value: 3622 * nothing 3623 **/ 3624static void ipr_slave_destroy(struct scsi_device *sdev) 3625{ 3626 struct ipr_resource_entry *res; 3627 struct ipr_ioa_cfg *ioa_cfg; 3628 unsigned long lock_flags = 0; 3629 3630 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3631 3632 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3633 res = (struct ipr_resource_entry *) sdev->hostdata; 3634 if (res) { 3635 if (res->sata_port) 3636 ata_port_disable(res->sata_port->ap); 3637 sdev->hostdata = NULL; 3638 res->sdev = NULL; 3639 res->sata_port = NULL; 3640 } 3641 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3642} 3643 3644/** 3645 * ipr_slave_configure - Configure a SCSI device 3646 * @sdev: scsi device struct 3647 * 3648 * This function configures the specified scsi device. 3649 * 3650 * Return value: 3651 * 0 on success 3652 **/ 3653static int ipr_slave_configure(struct scsi_device *sdev) 3654{ 3655 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3656 struct ipr_resource_entry *res; 3657 unsigned long lock_flags = 0; 3658 3659 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3660 res = sdev->hostdata; 3661 if (res) { 3662 if (ipr_is_af_dasd_device(res)) 3663 sdev->type = TYPE_RAID; 3664 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 3665 sdev->scsi_level = 4; 3666 sdev->no_uld_attach = 1; 3667 } 3668 if (ipr_is_vset_device(res)) { 3669 blk_queue_rq_timeout(sdev->request_queue, 3670 IPR_VSET_RW_TIMEOUT); 3671 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 3672 } 3673 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) 3674 sdev->allow_restart = 1; 3675 if (ipr_is_gata(res) && res->sata_port) { 3676 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 3677 ata_sas_slave_configure(sdev, res->sata_port->ap); 3678 } else { 3679 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 3680 } 3681 } 3682 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3683 return 0; 3684} 3685 3686/** 3687 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 3688 * @sdev: scsi device struct 3689 * 3690 * This function initializes an ATA port so that future commands 3691 * sent through queuecommand will work. 3692 * 3693 * Return value: 3694 * 0 on success 3695 **/ 3696static int ipr_ata_slave_alloc(struct scsi_device *sdev) 3697{ 3698 struct ipr_sata_port *sata_port = NULL; 3699 int rc = -ENXIO; 3700 3701 ENTER; 3702 if (sdev->sdev_target) 3703 sata_port = sdev->sdev_target->hostdata; 3704 if (sata_port) 3705 rc = ata_sas_port_init(sata_port->ap); 3706 if (rc) 3707 ipr_slave_destroy(sdev); 3708 3709 LEAVE; 3710 return rc; 3711} 3712 3713/** 3714 * ipr_slave_alloc - Prepare for commands to a device. 3715 * @sdev: scsi device struct 3716 * 3717 * This function saves a pointer to the resource entry 3718 * in the scsi device struct if the device exists. We 3719 * can then use this pointer in ipr_queuecommand when 3720 * handling new commands. 3721 * 3722 * Return value: 3723 * 0 on success / -ENXIO if device does not exist 3724 **/ 3725static int ipr_slave_alloc(struct scsi_device *sdev) 3726{ 3727 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3728 struct ipr_resource_entry *res; 3729 unsigned long lock_flags; 3730 int rc = -ENXIO; 3731 3732 sdev->hostdata = NULL; 3733 3734 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3735 3736 res = ipr_find_sdev(sdev); 3737 if (res) { 3738 res->sdev = sdev; 3739 res->add_to_ml = 0; 3740 res->in_erp = 0; 3741 sdev->hostdata = res; 3742 if (!ipr_is_naca_model(res)) 3743 res->needs_sync_complete = 1; 3744 rc = 0; 3745 if (ipr_is_gata(res)) { 3746 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3747 return ipr_ata_slave_alloc(sdev); 3748 } 3749 } 3750 3751 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3752 3753 return rc; 3754} 3755 3756/** 3757 * ipr_eh_host_reset - Reset the host adapter 3758 * @scsi_cmd: scsi command struct 3759 * 3760 * Return value: 3761 * SUCCESS / FAILED 3762 **/ 3763static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 3764{ 3765 struct ipr_ioa_cfg *ioa_cfg; 3766 int rc; 3767 3768 ENTER; 3769 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3770 3771 dev_err(&ioa_cfg->pdev->dev, 3772 "Adapter being reset as a result of error recovery.\n"); 3773 3774 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 3775 ioa_cfg->sdt_state = GET_DUMP; 3776 3777 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 3778 3779 LEAVE; 3780 return rc; 3781} 3782 3783static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 3784{ 3785 int rc; 3786 3787 spin_lock_irq(cmd->device->host->host_lock); 3788 rc = __ipr_eh_host_reset(cmd); 3789 spin_unlock_irq(cmd->device->host->host_lock); 3790 3791 return rc; 3792} 3793 3794/** 3795 * ipr_device_reset - Reset the device 3796 * @ioa_cfg: ioa config struct 3797 * @res: resource entry struct 3798 * 3799 * This function issues a device reset to the affected device. 3800 * If the device is a SCSI device, a LUN reset will be sent 3801 * to the device first. If that does not work, a target reset 3802 * will be sent. If the device is a SATA device, a PHY reset will 3803 * be sent. 3804 * 3805 * Return value: 3806 * 0 on success / non-zero on failure 3807 **/ 3808static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 3809 struct ipr_resource_entry *res) 3810{ 3811 struct ipr_cmnd *ipr_cmd; 3812 struct ipr_ioarcb *ioarcb; 3813 struct ipr_cmd_pkt *cmd_pkt; 3814 struct ipr_ioarcb_ata_regs *regs; 3815 u32 ioasc; 3816 3817 ENTER; 3818 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 3819 ioarcb = &ipr_cmd->ioarcb; 3820 cmd_pkt = &ioarcb->cmd_pkt; 3821 regs = &ioarcb->add_data.u.regs; 3822 3823 ioarcb->res_handle = res->cfgte.res_handle; 3824 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 3825 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 3826 if (ipr_is_gata(res)) { 3827 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 3828 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags)); 3829 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 3830 } 3831 3832 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 3833 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 3834 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 3835 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) 3836 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 3837 sizeof(struct ipr_ioasa_gata)); 3838 3839 LEAVE; 3840 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 3841} 3842 3843/** 3844 * ipr_sata_reset - Reset the SATA port 3845 * @link: SATA link to reset 3846 * @classes: class of the attached device 3847 * 3848 * This function issues a SATA phy reset to the affected ATA link. 3849 * 3850 * Return value: 3851 * 0 on success / non-zero on failure 3852 **/ 3853static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 3854 unsigned long deadline) 3855{ 3856 struct ipr_sata_port *sata_port = link->ap->private_data; 3857 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 3858 struct ipr_resource_entry *res; 3859 unsigned long lock_flags = 0; 3860 int rc = -ENXIO; 3861 3862 ENTER; 3863 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3864 while(ioa_cfg->in_reset_reload) { 3865 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3866 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3867 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3868 } 3869 3870 res = sata_port->res; 3871 if (res) { 3872 rc = ipr_device_reset(ioa_cfg, res); 3873 switch(res->cfgte.proto) { 3874 case IPR_PROTO_SATA: 3875 case IPR_PROTO_SAS_STP: 3876 *classes = ATA_DEV_ATA; 3877 break; 3878 case IPR_PROTO_SATA_ATAPI: 3879 case IPR_PROTO_SAS_STP_ATAPI: 3880 *classes = ATA_DEV_ATAPI; 3881 break; 3882 default: 3883 *classes = ATA_DEV_UNKNOWN; 3884 break; 3885 }; 3886 } 3887 3888 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3889 LEAVE; 3890 return rc; 3891} 3892 3893/** 3894 * ipr_eh_dev_reset - Reset the device 3895 * @scsi_cmd: scsi command struct 3896 * 3897 * This function issues a device reset to the affected device. 3898 * A LUN reset will be sent to the device first. If that does 3899 * not work, a target reset will be sent. 3900 * 3901 * Return value: 3902 * SUCCESS / FAILED 3903 **/ 3904static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 3905{ 3906 struct ipr_cmnd *ipr_cmd; 3907 struct ipr_ioa_cfg *ioa_cfg; 3908 struct ipr_resource_entry *res; 3909 struct ata_port *ap; 3910 int rc = 0; 3911 3912 ENTER; 3913 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3914 res = scsi_cmd->device->hostdata; 3915 3916 if (!res) 3917 return FAILED; 3918 3919 /* 3920 * If we are currently going through reset/reload, return failed. This will force the 3921 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 3922 * reset to complete 3923 */ 3924 if (ioa_cfg->in_reset_reload) 3925 return FAILED; 3926 if (ioa_cfg->ioa_is_dead) 3927 return FAILED; 3928 3929 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 3930 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { 3931 if (ipr_cmd->scsi_cmd) 3932 ipr_cmd->done = ipr_scsi_eh_done; 3933 if (ipr_cmd->qc) 3934 ipr_cmd->done = ipr_sata_eh_done; 3935 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 3936 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 3937 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 3938 } 3939 } 3940 } 3941 3942 res->resetting_device = 1; 3943 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 3944 3945 if (ipr_is_gata(res) && res->sata_port) { 3946 ap = res->sata_port->ap; 3947 spin_unlock_irq(scsi_cmd->device->host->host_lock); 3948 ata_std_error_handler(ap); 3949 spin_lock_irq(scsi_cmd->device->host->host_lock); 3950 3951 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 3952 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { 3953 rc = -EIO; 3954 break; 3955 } 3956 } 3957 } else 3958 rc = ipr_device_reset(ioa_cfg, res); 3959 res->resetting_device = 0; 3960 3961 LEAVE; 3962 return (rc ? FAILED : SUCCESS); 3963} 3964 3965static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 3966{ 3967 int rc; 3968 3969 spin_lock_irq(cmd->device->host->host_lock); 3970 rc = __ipr_eh_dev_reset(cmd); 3971 spin_unlock_irq(cmd->device->host->host_lock); 3972 3973 return rc; 3974} 3975 3976/** 3977 * ipr_bus_reset_done - Op done function for bus reset. 3978 * @ipr_cmd: ipr command struct 3979 * 3980 * This function is the op done function for a bus reset 3981 * 3982 * Return value: 3983 * none 3984 **/ 3985static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 3986{ 3987 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 3988 struct ipr_resource_entry *res; 3989 3990 ENTER; 3991 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3992 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, 3993 sizeof(res->cfgte.res_handle))) { 3994 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); 3995 break; 3996 } 3997 } 3998 3999 /* 4000 * If abort has not completed, indicate the reset has, else call the 4001 * abort's done function to wake the sleeping eh thread 4002 */ 4003 if (ipr_cmd->sibling->sibling) 4004 ipr_cmd->sibling->sibling = NULL; 4005 else 4006 ipr_cmd->sibling->done(ipr_cmd->sibling); 4007 4008 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4009 LEAVE; 4010} 4011 4012/** 4013 * ipr_abort_timeout - An abort task has timed out 4014 * @ipr_cmd: ipr command struct 4015 * 4016 * This function handles when an abort task times out. If this 4017 * happens we issue a bus reset since we have resources tied 4018 * up that must be freed before returning to the midlayer. 4019 * 4020 * Return value: 4021 * none 4022 **/ 4023static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4024{ 4025 struct ipr_cmnd *reset_cmd; 4026 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4027 struct ipr_cmd_pkt *cmd_pkt; 4028 unsigned long lock_flags = 0; 4029 4030 ENTER; 4031 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4032 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4033 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4034 return; 4035 } 4036 4037 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4038 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4039 ipr_cmd->sibling = reset_cmd; 4040 reset_cmd->sibling = ipr_cmd; 4041 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4042 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4043 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4044 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4045 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4046 4047 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4048 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4049 LEAVE; 4050} 4051 4052/** 4053 * ipr_cancel_op - Cancel specified op 4054 * @scsi_cmd: scsi command struct 4055 * 4056 * This function cancels specified op. 4057 * 4058 * Return value: 4059 * SUCCESS / FAILED 4060 **/ 4061static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4062{ 4063 struct ipr_cmnd *ipr_cmd; 4064 struct ipr_ioa_cfg *ioa_cfg; 4065 struct ipr_resource_entry *res; 4066 struct ipr_cmd_pkt *cmd_pkt; 4067 u32 ioasc; 4068 int op_found = 0; 4069 4070 ENTER; 4071 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4072 res = scsi_cmd->device->hostdata; 4073 4074 /* If we are currently going through reset/reload, return failed. 4075 * This will force the mid-layer to call ipr_eh_host_reset, 4076 * which will then go to sleep and wait for the reset to complete 4077 */ 4078 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4079 return FAILED; 4080 if (!res || !ipr_is_gscsi(res)) 4081 return FAILED; 4082 4083 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4084 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4085 ipr_cmd->done = ipr_scsi_eh_done; 4086 op_found = 1; 4087 break; 4088 } 4089 } 4090 4091 if (!op_found) 4092 return SUCCESS; 4093 4094 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4095 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 4096 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4097 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4098 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4099 ipr_cmd->u.sdev = scsi_cmd->device; 4100 4101 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4102 scsi_cmd->cmnd[0]); 4103 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4104 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4105 4106 /* 4107 * If the abort task timed out and we sent a bus reset, we will get 4108 * one the following responses to the abort 4109 */ 4110 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4111 ioasc = 0; 4112 ipr_trace; 4113 } 4114 4115 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4116 if (!ipr_is_naca_model(res)) 4117 res->needs_sync_complete = 1; 4118 4119 LEAVE; 4120 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4121} 4122 4123/** 4124 * ipr_eh_abort - Abort a single op 4125 * @scsi_cmd: scsi command struct 4126 * 4127 * Return value: 4128 * SUCCESS / FAILED 4129 **/ 4130static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4131{ 4132 unsigned long flags; 4133 int rc; 4134 4135 ENTER; 4136 4137 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4138 rc = ipr_cancel_op(scsi_cmd); 4139 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4140 4141 LEAVE; 4142 return rc; 4143} 4144 4145/** 4146 * ipr_handle_other_interrupt - Handle "other" interrupts 4147 * @ioa_cfg: ioa config struct 4148 * @int_reg: interrupt register 4149 * 4150 * Return value: 4151 * IRQ_NONE / IRQ_HANDLED 4152 **/ 4153static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4154 volatile u32 int_reg) 4155{ 4156 irqreturn_t rc = IRQ_HANDLED; 4157 4158 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4159 /* Mask the interrupt */ 4160 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4161 4162 /* Clear the interrupt */ 4163 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4164 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4165 4166 list_del(&ioa_cfg->reset_cmd->queue); 4167 del_timer(&ioa_cfg->reset_cmd->timer); 4168 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4169 } else { 4170 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4171 ioa_cfg->ioa_unit_checked = 1; 4172 else 4173 dev_err(&ioa_cfg->pdev->dev, 4174 "Permanent IOA failure. 0x%08X\n", int_reg); 4175 4176 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4177 ioa_cfg->sdt_state = GET_DUMP; 4178 4179 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4180 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4181 } 4182 4183 return rc; 4184} 4185 4186/** 4187 * ipr_isr - Interrupt service routine 4188 * @irq: irq number 4189 * @devp: pointer to ioa config struct 4190 * 4191 * Return value: 4192 * IRQ_NONE / IRQ_HANDLED 4193 **/ 4194static irqreturn_t ipr_isr(int irq, void *devp) 4195{ 4196 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 4197 unsigned long lock_flags = 0; 4198 volatile u32 int_reg, int_mask_reg; 4199 u32 ioasc; 4200 u16 cmd_index; 4201 struct ipr_cmnd *ipr_cmd; 4202 irqreturn_t rc = IRQ_NONE; 4203 4204 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4205 4206 /* If interrupts are disabled, ignore the interrupt */ 4207 if (!ioa_cfg->allow_interrupts) { 4208 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4209 return IRQ_NONE; 4210 } 4211 4212 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4213 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4214 4215 /* If an interrupt on the adapter did not occur, ignore it */ 4216 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 4217 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4218 return IRQ_NONE; 4219 } 4220 4221 while (1) { 4222 ipr_cmd = NULL; 4223 4224 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 4225 ioa_cfg->toggle_bit) { 4226 4227 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 4228 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 4229 4230 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 4231 ioa_cfg->errors_logged++; 4232 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); 4233 4234 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4235 ioa_cfg->sdt_state = GET_DUMP; 4236 4237 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4238 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4239 return IRQ_HANDLED; 4240 } 4241 4242 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 4243 4244 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4245 4246 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 4247 4248 list_del(&ipr_cmd->queue); 4249 del_timer(&ipr_cmd->timer); 4250 ipr_cmd->done(ipr_cmd); 4251 4252 rc = IRQ_HANDLED; 4253 4254 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 4255 ioa_cfg->hrrq_curr++; 4256 } else { 4257 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 4258 ioa_cfg->toggle_bit ^= 1u; 4259 } 4260 } 4261 4262 if (ipr_cmd != NULL) { 4263 /* Clear the PCI interrupt */ 4264 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); 4265 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4266 } else 4267 break; 4268 } 4269 4270 if (unlikely(rc == IRQ_NONE)) 4271 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 4272 4273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4274 return rc; 4275} 4276 4277/** 4278 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 4279 * @ioa_cfg: ioa config struct 4280 * @ipr_cmd: ipr command struct 4281 * 4282 * Return value: 4283 * 0 on success / -1 on failure 4284 **/ 4285static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 4286 struct ipr_cmnd *ipr_cmd) 4287{ 4288 int i, nseg; 4289 struct scatterlist *sg; 4290 u32 length; 4291 u32 ioadl_flags = 0; 4292 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4293 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4294 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 4295 4296 length = scsi_bufflen(scsi_cmd); 4297 if (!length) 4298 return 0; 4299 4300 nseg = scsi_dma_map(scsi_cmd); 4301 if (nseg < 0) { 4302 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 4303 return -1; 4304 } 4305 4306 ipr_cmd->dma_use_sg = nseg; 4307 4308 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 4309 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 4310 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 4311 ioarcb->write_data_transfer_length = cpu_to_be32(length); 4312 ioarcb->write_ioadl_len = 4313 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4314 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 4315 ioadl_flags = IPR_IOADL_FLAGS_READ; 4316 ioarcb->read_data_transfer_length = cpu_to_be32(length); 4317 ioarcb->read_ioadl_len = 4318 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4319 } 4320 4321 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) { 4322 ioadl = ioarcb->add_data.u.ioadl; 4323 ioarcb->write_ioadl_addr = 4324 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + 4325 offsetof(struct ipr_ioarcb, add_data)); 4326 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4327 } 4328 4329 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 4330 ioadl[i].flags_and_data_len = 4331 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 4332 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 4333 } 4334 4335 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 4336 return 0; 4337} 4338 4339/** 4340 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 4341 * @scsi_cmd: scsi command struct 4342 * 4343 * Return value: 4344 * task attributes 4345 **/ 4346static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 4347{ 4348 u8 tag[2]; 4349 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 4350 4351 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 4352 switch (tag[0]) { 4353 case MSG_SIMPLE_TAG: 4354 rc = IPR_FLAGS_LO_SIMPLE_TASK; 4355 break; 4356 case MSG_HEAD_TAG: 4357 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 4358 break; 4359 case MSG_ORDERED_TAG: 4360 rc = IPR_FLAGS_LO_ORDERED_TASK; 4361 break; 4362 }; 4363 } 4364 4365 return rc; 4366} 4367 4368/** 4369 * ipr_erp_done - Process completion of ERP for a device 4370 * @ipr_cmd: ipr command struct 4371 * 4372 * This function copies the sense buffer into the scsi_cmd 4373 * struct and pushes the scsi_done function. 4374 * 4375 * Return value: 4376 * nothing 4377 **/ 4378static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 4379{ 4380 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4381 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4382 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4383 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4384 4385 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4386 scsi_cmd->result |= (DID_ERROR << 16); 4387 scmd_printk(KERN_ERR, scsi_cmd, 4388 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 4389 } else { 4390 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 4391 SCSI_SENSE_BUFFERSIZE); 4392 } 4393 4394 if (res) { 4395 if (!ipr_is_naca_model(res)) 4396 res->needs_sync_complete = 1; 4397 res->in_erp = 0; 4398 } 4399 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4400 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4401 scsi_cmd->scsi_done(scsi_cmd); 4402} 4403 4404/** 4405 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 4406 * @ipr_cmd: ipr command struct 4407 * 4408 * Return value: 4409 * none 4410 **/ 4411static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 4412{ 4413 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4414 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4415 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); 4416 4417 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 4418 ioarcb->write_data_transfer_length = 0; 4419 ioarcb->read_data_transfer_length = 0; 4420 ioarcb->write_ioadl_len = 0; 4421 ioarcb->read_ioadl_len = 0; 4422 ioasa->ioasc = 0; 4423 ioasa->residual_data_len = 0; 4424 ioarcb->write_ioadl_addr = 4425 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 4426 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4427} 4428 4429/** 4430 * ipr_erp_request_sense - Send request sense to a device 4431 * @ipr_cmd: ipr command struct 4432 * 4433 * This function sends a request sense to a device as a result 4434 * of a check condition. 4435 * 4436 * Return value: 4437 * nothing 4438 **/ 4439static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 4440{ 4441 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4442 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4443 4444 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4445 ipr_erp_done(ipr_cmd); 4446 return; 4447 } 4448 4449 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4450 4451 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 4452 cmd_pkt->cdb[0] = REQUEST_SENSE; 4453 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 4454 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 4455 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4456 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 4457 4458 ipr_cmd->ioadl[0].flags_and_data_len = 4459 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); 4460 ipr_cmd->ioadl[0].address = 4461 cpu_to_be32(ipr_cmd->sense_buffer_dma); 4462 4463 ipr_cmd->ioarcb.read_ioadl_len = 4464 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 4465 ipr_cmd->ioarcb.read_data_transfer_length = 4466 cpu_to_be32(SCSI_SENSE_BUFFERSIZE); 4467 4468 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 4469 IPR_REQUEST_SENSE_TIMEOUT * 2); 4470} 4471 4472/** 4473 * ipr_erp_cancel_all - Send cancel all to a device 4474 * @ipr_cmd: ipr command struct 4475 * 4476 * This function sends a cancel all to a device to clear the 4477 * queue. If we are running TCQ on the device, QERR is set to 1, 4478 * which means all outstanding ops have been dropped on the floor. 4479 * Cancel all will return them to us. 4480 * 4481 * Return value: 4482 * nothing 4483 **/ 4484static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 4485{ 4486 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4487 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4488 struct ipr_cmd_pkt *cmd_pkt; 4489 4490 res->in_erp = 1; 4491 4492 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4493 4494 if (!scsi_get_tag_type(scsi_cmd->device)) { 4495 ipr_erp_request_sense(ipr_cmd); 4496 return; 4497 } 4498 4499 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4500 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4501 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4502 4503 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 4504 IPR_CANCEL_ALL_TIMEOUT); 4505} 4506 4507/** 4508 * ipr_dump_ioasa - Dump contents of IOASA 4509 * @ioa_cfg: ioa config struct 4510 * @ipr_cmd: ipr command struct 4511 * @res: resource entry struct 4512 * 4513 * This function is invoked by the interrupt handler when ops 4514 * fail. It will log the IOASA if appropriate. Only called 4515 * for GPDD ops. 4516 * 4517 * Return value: 4518 * none 4519 **/ 4520static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 4521 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 4522{ 4523 int i; 4524 u16 data_len; 4525 u32 ioasc, fd_ioasc; 4526 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4527 __be32 *ioasa_data = (__be32 *)ioasa; 4528 int error_index; 4529 4530 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; 4531 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK; 4532 4533 if (0 == ioasc) 4534 return; 4535 4536 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 4537 return; 4538 4539 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 4540 error_index = ipr_get_error(fd_ioasc); 4541 else 4542 error_index = ipr_get_error(ioasc); 4543 4544 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 4545 /* Don't log an error if the IOA already logged one */ 4546 if (ioasa->ilid != 0) 4547 return; 4548 4549 if (!ipr_is_gscsi(res)) 4550 return; 4551 4552 if (ipr_error_table[error_index].log_ioasa == 0) 4553 return; 4554 } 4555 4556 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 4557 4558 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) 4559 data_len = sizeof(struct ipr_ioasa); 4560 else 4561 data_len = be16_to_cpu(ioasa->ret_stat_len); 4562 4563 ipr_err("IOASA Dump:\n"); 4564 4565 for (i = 0; i < data_len / 4; i += 4) { 4566 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 4567 be32_to_cpu(ioasa_data[i]), 4568 be32_to_cpu(ioasa_data[i+1]), 4569 be32_to_cpu(ioasa_data[i+2]), 4570 be32_to_cpu(ioasa_data[i+3])); 4571 } 4572} 4573 4574/** 4575 * ipr_gen_sense - Generate SCSI sense data from an IOASA 4576 * @ioasa: IOASA 4577 * @sense_buf: sense data buffer 4578 * 4579 * Return value: 4580 * none 4581 **/ 4582static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 4583{ 4584 u32 failing_lba; 4585 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 4586 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 4587 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4588 u32 ioasc = be32_to_cpu(ioasa->ioasc); 4589 4590 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 4591 4592 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 4593 return; 4594 4595 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 4596 4597 if (ipr_is_vset_device(res) && 4598 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 4599 ioasa->u.vset.failing_lba_hi != 0) { 4600 sense_buf[0] = 0x72; 4601 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 4602 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 4603 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 4604 4605 sense_buf[7] = 12; 4606 sense_buf[8] = 0; 4607 sense_buf[9] = 0x0A; 4608 sense_buf[10] = 0x80; 4609 4610 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 4611 4612 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 4613 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 4614 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 4615 sense_buf[15] = failing_lba & 0x000000ff; 4616 4617 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4618 4619 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 4620 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 4621 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 4622 sense_buf[19] = failing_lba & 0x000000ff; 4623 } else { 4624 sense_buf[0] = 0x70; 4625 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 4626 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 4627 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 4628 4629 /* Illegal request */ 4630 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 4631 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 4632 sense_buf[7] = 10; /* additional length */ 4633 4634 /* IOARCB was in error */ 4635 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 4636 sense_buf[15] = 0xC0; 4637 else /* Parameter data was invalid */ 4638 sense_buf[15] = 0x80; 4639 4640 sense_buf[16] = 4641 ((IPR_FIELD_POINTER_MASK & 4642 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; 4643 sense_buf[17] = 4644 (IPR_FIELD_POINTER_MASK & 4645 be32_to_cpu(ioasa->ioasc_specific)) & 0xff; 4646 } else { 4647 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 4648 if (ipr_is_vset_device(res)) 4649 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4650 else 4651 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 4652 4653 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 4654 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 4655 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 4656 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 4657 sense_buf[6] = failing_lba & 0x000000ff; 4658 } 4659 4660 sense_buf[7] = 6; /* additional length */ 4661 } 4662 } 4663} 4664 4665/** 4666 * ipr_get_autosense - Copy autosense data to sense buffer 4667 * @ipr_cmd: ipr command struct 4668 * 4669 * This function copies the autosense buffer to the buffer 4670 * in the scsi_cmd, if there is autosense available. 4671 * 4672 * Return value: 4673 * 1 if autosense was available / 0 if not 4674 **/ 4675static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 4676{ 4677 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4678 4679 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 4680 return 0; 4681 4682 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 4683 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 4684 SCSI_SENSE_BUFFERSIZE)); 4685 return 1; 4686} 4687 4688/** 4689 * ipr_erp_start - Process an error response for a SCSI op 4690 * @ioa_cfg: ioa config struct 4691 * @ipr_cmd: ipr command struct 4692 * 4693 * This function determines whether or not to initiate ERP 4694 * on the affected device. 4695 * 4696 * Return value: 4697 * nothing 4698 **/ 4699static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 4700 struct ipr_cmnd *ipr_cmd) 4701{ 4702 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4703 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4704 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4705 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 4706 4707 if (!res) { 4708 ipr_scsi_eh_done(ipr_cmd); 4709 return; 4710 } 4711 4712 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 4713 ipr_gen_sense(ipr_cmd); 4714 4715 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 4716 4717 switch (masked_ioasc) { 4718 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 4719 if (ipr_is_naca_model(res)) 4720 scsi_cmd->result |= (DID_ABORT << 16); 4721 else 4722 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4723 break; 4724 case IPR_IOASC_IR_RESOURCE_HANDLE: 4725 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 4726 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4727 break; 4728 case IPR_IOASC_HW_SEL_TIMEOUT: 4729 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4730 if (!ipr_is_naca_model(res)) 4731 res->needs_sync_complete = 1; 4732 break; 4733 case IPR_IOASC_SYNC_REQUIRED: 4734 if (!res->in_erp) 4735 res->needs_sync_complete = 1; 4736 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4737 break; 4738 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 4739 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 4740 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 4741 break; 4742 case IPR_IOASC_BUS_WAS_RESET: 4743 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 4744 /* 4745 * Report the bus reset and ask for a retry. The device 4746 * will give CC/UA the next command. 4747 */ 4748 if (!res->resetting_device) 4749 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 4750 scsi_cmd->result |= (DID_ERROR << 16); 4751 if (!ipr_is_naca_model(res)) 4752 res->needs_sync_complete = 1; 4753 break; 4754 case IPR_IOASC_HW_DEV_BUS_STATUS: 4755 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 4756 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 4757 if (!ipr_get_autosense(ipr_cmd)) { 4758 if (!ipr_is_naca_model(res)) { 4759 ipr_erp_cancel_all(ipr_cmd); 4760 return; 4761 } 4762 } 4763 } 4764 if (!ipr_is_naca_model(res)) 4765 res->needs_sync_complete = 1; 4766 break; 4767 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 4768 break; 4769 default: 4770 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 4771 scsi_cmd->result |= (DID_ERROR << 16); 4772 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 4773 res->needs_sync_complete = 1; 4774 break; 4775 } 4776 4777 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4778 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4779 scsi_cmd->scsi_done(scsi_cmd); 4780} 4781 4782/** 4783 * ipr_scsi_done - mid-layer done function 4784 * @ipr_cmd: ipr command struct 4785 * 4786 * This function is invoked by the interrupt handler for 4787 * ops generated by the SCSI mid-layer 4788 * 4789 * Return value: 4790 * none 4791 **/ 4792static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 4793{ 4794 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4795 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4796 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4797 4798 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len)); 4799 4800 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 4801 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4802 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4803 scsi_cmd->scsi_done(scsi_cmd); 4804 } else 4805 ipr_erp_start(ioa_cfg, ipr_cmd); 4806} 4807 4808/** 4809 * ipr_queuecommand - Queue a mid-layer request 4810 * @scsi_cmd: scsi command struct 4811 * @done: done function 4812 * 4813 * This function queues a request generated by the mid-layer. 4814 * 4815 * Return value: 4816 * 0 on success 4817 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 4818 * SCSI_MLQUEUE_HOST_BUSY if host is busy 4819 **/ 4820static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, 4821 void (*done) (struct scsi_cmnd *)) 4822{ 4823 struct ipr_ioa_cfg *ioa_cfg; 4824 struct ipr_resource_entry *res; 4825 struct ipr_ioarcb *ioarcb; 4826 struct ipr_cmnd *ipr_cmd; 4827 int rc = 0; 4828 4829 scsi_cmd->scsi_done = done; 4830 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4831 res = scsi_cmd->device->hostdata; 4832 scsi_cmd->result = (DID_OK << 16); 4833 4834 /* 4835 * We are currently blocking all devices due to a host reset 4836 * We have told the host to stop giving us new requests, but 4837 * ERP ops don't count. FIXME 4838 */ 4839 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 4840 return SCSI_MLQUEUE_HOST_BUSY; 4841 4842 /* 4843 * FIXME - Create scsi_set_host_offline interface 4844 * and the ioa_is_dead check can be removed 4845 */ 4846 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 4847 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 4848 scsi_cmd->result = (DID_NO_CONNECT << 16); 4849 scsi_cmd->scsi_done(scsi_cmd); 4850 return 0; 4851 } 4852 4853 if (ipr_is_gata(res) && res->sata_port) 4854 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); 4855 4856 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4857 ioarcb = &ipr_cmd->ioarcb; 4858 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 4859 4860 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 4861 ipr_cmd->scsi_cmd = scsi_cmd; 4862 ioarcb->res_handle = res->cfgte.res_handle; 4863 ipr_cmd->done = ipr_scsi_done; 4864 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 4865 4866 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 4867 if (scsi_cmd->underflow == 0) 4868 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4869 4870 if (res->needs_sync_complete) { 4871 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 4872 res->needs_sync_complete = 0; 4873 } 4874 4875 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 4876 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 4877 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 4878 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 4879 } 4880 4881 if (scsi_cmd->cmnd[0] >= 0xC0 && 4882 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 4883 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 4884 4885 if (likely(rc == 0)) 4886 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 4887 4888 if (likely(rc == 0)) { 4889 mb(); 4890 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 4891 ioa_cfg->regs.ioarrin_reg); 4892 } else { 4893 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4894 return SCSI_MLQUEUE_HOST_BUSY; 4895 } 4896 4897 return 0; 4898} 4899 4900/** 4901 * ipr_ioctl - IOCTL handler 4902 * @sdev: scsi device struct 4903 * @cmd: IOCTL cmd 4904 * @arg: IOCTL arg 4905 * 4906 * Return value: 4907 * 0 on success / other on failure 4908 **/ 4909static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 4910{ 4911 struct ipr_resource_entry *res; 4912 4913 res = (struct ipr_resource_entry *)sdev->hostdata; 4914 if (res && ipr_is_gata(res)) { 4915 if (cmd == HDIO_GET_IDENTITY) 4916 return -ENOTTY; 4917 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 4918 } 4919 4920 return -EINVAL; 4921} 4922 4923/** 4924 * ipr_info - Get information about the card/driver 4925 * @scsi_host: scsi host struct 4926 * 4927 * Return value: 4928 * pointer to buffer with description string 4929 **/ 4930static const char * ipr_ioa_info(struct Scsi_Host *host) 4931{ 4932 static char buffer[512]; 4933 struct ipr_ioa_cfg *ioa_cfg; 4934 unsigned long lock_flags = 0; 4935 4936 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 4937 4938 spin_lock_irqsave(host->host_lock, lock_flags); 4939 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 4940 spin_unlock_irqrestore(host->host_lock, lock_flags); 4941 4942 return buffer; 4943} 4944 4945static struct scsi_host_template driver_template = { 4946 .module = THIS_MODULE, 4947 .name = "IPR", 4948 .info = ipr_ioa_info, 4949 .ioctl = ipr_ioctl, 4950 .queuecommand = ipr_queuecommand, 4951 .eh_abort_handler = ipr_eh_abort, 4952 .eh_device_reset_handler = ipr_eh_dev_reset, 4953 .eh_host_reset_handler = ipr_eh_host_reset, 4954 .slave_alloc = ipr_slave_alloc, 4955 .slave_configure = ipr_slave_configure, 4956 .slave_destroy = ipr_slave_destroy, 4957 .target_alloc = ipr_target_alloc, 4958 .target_destroy = ipr_target_destroy, 4959 .change_queue_depth = ipr_change_queue_depth, 4960 .change_queue_type = ipr_change_queue_type, 4961 .bios_param = ipr_biosparam, 4962 .can_queue = IPR_MAX_COMMANDS, 4963 .this_id = -1, 4964 .sg_tablesize = IPR_MAX_SGLIST, 4965 .max_sectors = IPR_IOA_MAX_SECTORS, 4966 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 4967 .use_clustering = ENABLE_CLUSTERING, 4968 .shost_attrs = ipr_ioa_attrs, 4969 .sdev_attrs = ipr_dev_attrs, 4970 .proc_name = IPR_NAME 4971}; 4972 4973/** 4974 * ipr_ata_phy_reset - libata phy_reset handler 4975 * @ap: ata port to reset 4976 * 4977 **/ 4978static void ipr_ata_phy_reset(struct ata_port *ap) 4979{ 4980 unsigned long flags; 4981 struct ipr_sata_port *sata_port = ap->private_data; 4982 struct ipr_resource_entry *res = sata_port->res; 4983 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4984 int rc; 4985 4986 ENTER; 4987 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 4988 while(ioa_cfg->in_reset_reload) { 4989 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 4990 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4991 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 4992 } 4993 4994 if (!ioa_cfg->allow_cmds) 4995 goto out_unlock; 4996 4997 rc = ipr_device_reset(ioa_cfg, res); 4998 4999 if (rc) { 5000 ata_port_disable(ap); 5001 goto out_unlock; 5002 } 5003 5004 switch(res->cfgte.proto) { 5005 case IPR_PROTO_SATA: 5006 case IPR_PROTO_SAS_STP: 5007 ap->link.device[0].class = ATA_DEV_ATA; 5008 break; 5009 case IPR_PROTO_SATA_ATAPI: 5010 case IPR_PROTO_SAS_STP_ATAPI: 5011 ap->link.device[0].class = ATA_DEV_ATAPI; 5012 break; 5013 default: 5014 ap->link.device[0].class = ATA_DEV_UNKNOWN; 5015 ata_port_disable(ap); 5016 break; 5017 }; 5018 5019out_unlock: 5020 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5021 LEAVE; 5022} 5023 5024/** 5025 * ipr_ata_post_internal - Cleanup after an internal command 5026 * @qc: ATA queued command 5027 * 5028 * Return value: 5029 * none 5030 **/ 5031static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5032{ 5033 struct ipr_sata_port *sata_port = qc->ap->private_data; 5034 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5035 struct ipr_cmnd *ipr_cmd; 5036 unsigned long flags; 5037 5038 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5039 while(ioa_cfg->in_reset_reload) { 5040 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5041 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5042 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5043 } 5044 5045 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5046 if (ipr_cmd->qc == qc) { 5047 ipr_device_reset(ioa_cfg, sata_port->res); 5048 break; 5049 } 5050 } 5051 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5052} 5053 5054/** 5055 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5056 * @regs: destination 5057 * @tf: source ATA taskfile 5058 * 5059 * Return value: 5060 * none 5061 **/ 5062static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5063 struct ata_taskfile *tf) 5064{ 5065 regs->feature = tf->feature; 5066 regs->nsect = tf->nsect; 5067 regs->lbal = tf->lbal; 5068 regs->lbam = tf->lbam; 5069 regs->lbah = tf->lbah; 5070 regs->device = tf->device; 5071 regs->command = tf->command; 5072 regs->hob_feature = tf->hob_feature; 5073 regs->hob_nsect = tf->hob_nsect; 5074 regs->hob_lbal = tf->hob_lbal; 5075 regs->hob_lbam = tf->hob_lbam; 5076 regs->hob_lbah = tf->hob_lbah; 5077 regs->ctl = tf->ctl; 5078} 5079 5080/** 5081 * ipr_sata_done - done function for SATA commands 5082 * @ipr_cmd: ipr command struct 5083 * 5084 * This function is invoked by the interrupt handler for 5085 * ops generated by the SCSI mid-layer to SATA devices 5086 * 5087 * Return value: 5088 * none 5089 **/ 5090static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5091{ 5092 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5093 struct ata_queued_cmd *qc = ipr_cmd->qc; 5094 struct ipr_sata_port *sata_port = qc->ap->private_data; 5095 struct ipr_resource_entry *res = sata_port->res; 5096 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5097 5098 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 5099 sizeof(struct ipr_ioasa_gata)); 5100 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5101 5102 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5103 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus, 5104 res->cfgte.res_addr.target); 5105 5106 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5107 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5108 else 5109 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5110 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5111 ata_qc_complete(qc); 5112} 5113 5114/** 5115 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 5116 * @ipr_cmd: ipr command struct 5117 * @qc: ATA queued command 5118 * 5119 **/ 5120static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 5121 struct ata_queued_cmd *qc) 5122{ 5123 u32 ioadl_flags = 0; 5124 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5125 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5126 struct ipr_ioadl_desc *last_ioadl = NULL; 5127 int len = qc->nbytes; 5128 struct scatterlist *sg; 5129 unsigned int si; 5130 5131 if (len == 0) 5132 return; 5133 5134 if (qc->dma_dir == DMA_TO_DEVICE) { 5135 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5136 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5137 ioarcb->write_data_transfer_length = cpu_to_be32(len); 5138 ioarcb->write_ioadl_len = 5139 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5140 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 5141 ioadl_flags = IPR_IOADL_FLAGS_READ; 5142 ioarcb->read_data_transfer_length = cpu_to_be32(len); 5143 ioarcb->read_ioadl_len = 5144 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5145 } 5146 5147 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5148 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5149 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 5150 5151 last_ioadl = ioadl; 5152 ioadl++; 5153 } 5154 5155 if (likely(last_ioadl)) 5156 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5157} 5158 5159/** 5160 * ipr_qc_issue - Issue a SATA qc to a device 5161 * @qc: queued command 5162 * 5163 * Return value: 5164 * 0 if success 5165 **/ 5166static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 5167{ 5168 struct ata_port *ap = qc->ap; 5169 struct ipr_sata_port *sata_port = ap->private_data; 5170 struct ipr_resource_entry *res = sata_port->res; 5171 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5172 struct ipr_cmnd *ipr_cmd; 5173 struct ipr_ioarcb *ioarcb; 5174 struct ipr_ioarcb_ata_regs *regs; 5175 5176 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 5177 return AC_ERR_SYSTEM; 5178 5179 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5180 ioarcb = &ipr_cmd->ioarcb; 5181 regs = &ioarcb->add_data.u.regs; 5182 5183 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data)); 5184 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs)); 5185 5186 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5187 ipr_cmd->qc = qc; 5188 ipr_cmd->done = ipr_sata_done; 5189 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 5190 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 5191 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5192 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5193 ipr_cmd->dma_use_sg = qc->n_elem; 5194 5195 ipr_build_ata_ioadl(ipr_cmd, qc); 5196 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 5197 ipr_copy_sata_tf(regs, &qc->tf); 5198 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 5199 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 5200 5201 switch (qc->tf.protocol) { 5202 case ATA_PROT_NODATA: 5203 case ATA_PROT_PIO: 5204 break; 5205 5206 case ATA_PROT_DMA: 5207 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5208 break; 5209 5210 case ATAPI_PROT_PIO: 5211 case ATAPI_PROT_NODATA: 5212 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5213 break; 5214 5215 case ATAPI_PROT_DMA: 5216 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5217 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5218 break; 5219 5220 default: 5221 WARN_ON(1); 5222 return AC_ERR_INVALID; 5223 } 5224 5225 mb(); 5226 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr), 5227 ioa_cfg->regs.ioarrin_reg); 5228 return 0; 5229} 5230 5231/** 5232 * ipr_qc_fill_rtf - Read result TF 5233 * @qc: ATA queued command 5234 * 5235 * Return value: 5236 * true 5237 **/ 5238static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 5239{ 5240 struct ipr_sata_port *sata_port = qc->ap->private_data; 5241 struct ipr_ioasa_gata *g = &sata_port->ioasa; 5242 struct ata_taskfile *tf = &qc->result_tf; 5243 5244 tf->feature = g->error; 5245 tf->nsect = g->nsect; 5246 tf->lbal = g->lbal; 5247 tf->lbam = g->lbam; 5248 tf->lbah = g->lbah; 5249 tf->device = g->device; 5250 tf->command = g->status; 5251 tf->hob_nsect = g->hob_nsect; 5252 tf->hob_lbal = g->hob_lbal; 5253 tf->hob_lbam = g->hob_lbam; 5254 tf->hob_lbah = g->hob_lbah; 5255 tf->ctl = g->alt_status; 5256 5257 return true; 5258} 5259 5260static struct ata_port_operations ipr_sata_ops = { 5261 .phy_reset = ipr_ata_phy_reset, 5262 .hardreset = ipr_sata_reset, 5263 .post_internal_cmd = ipr_ata_post_internal, 5264 .qc_prep = ata_noop_qc_prep, 5265 .qc_issue = ipr_qc_issue, 5266 .qc_fill_rtf = ipr_qc_fill_rtf, 5267 .port_start = ata_sas_port_start, 5268 .port_stop = ata_sas_port_stop 5269}; 5270 5271static struct ata_port_info sata_port_info = { 5272 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | 5273 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, 5274 .pio_mask = 0x10, /* pio4 */ 5275 .mwdma_mask = 0x07, 5276 .udma_mask = 0x7f, /* udma0-6 */ 5277 .port_ops = &ipr_sata_ops 5278}; 5279 5280#ifdef CONFIG_PPC_PSERIES 5281static const u16 ipr_blocked_processors[] = { 5282 PV_NORTHSTAR, 5283 PV_PULSAR, 5284 PV_POWER4, 5285 PV_ICESTAR, 5286 PV_SSTAR, 5287 PV_POWER4p, 5288 PV_630, 5289 PV_630p 5290}; 5291 5292/** 5293 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 5294 * @ioa_cfg: ioa cfg struct 5295 * 5296 * Adapters that use Gemstone revision < 3.1 do not work reliably on 5297 * certain pSeries hardware. This function determines if the given 5298 * adapter is in one of these confgurations or not. 5299 * 5300 * Return value: 5301 * 1 if adapter is not supported / 0 if adapter is supported 5302 **/ 5303static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 5304{ 5305 int i; 5306 5307 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 5308 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 5309 if (__is_processor(ipr_blocked_processors[i])) 5310 return 1; 5311 } 5312 } 5313 return 0; 5314} 5315#else 5316#define ipr_invalid_adapter(ioa_cfg) 0 5317#endif 5318 5319/** 5320 * ipr_ioa_bringdown_done - IOA bring down completion. 5321 * @ipr_cmd: ipr command struct 5322 * 5323 * This function processes the completion of an adapter bring down. 5324 * It wakes any reset sleepers. 5325 * 5326 * Return value: 5327 * IPR_RC_JOB_RETURN 5328 **/ 5329static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 5330{ 5331 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5332 5333 ENTER; 5334 ioa_cfg->in_reset_reload = 0; 5335 ioa_cfg->reset_retries = 0; 5336 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5337 wake_up_all(&ioa_cfg->reset_wait_q); 5338 5339 spin_unlock_irq(ioa_cfg->host->host_lock); 5340 scsi_unblock_requests(ioa_cfg->host); 5341 spin_lock_irq(ioa_cfg->host->host_lock); 5342 LEAVE; 5343 5344 return IPR_RC_JOB_RETURN; 5345} 5346 5347/** 5348 * ipr_ioa_reset_done - IOA reset completion. 5349 * @ipr_cmd: ipr command struct 5350 * 5351 * This function processes the completion of an adapter reset. 5352 * It schedules any necessary mid-layer add/removes and 5353 * wakes any reset sleepers. 5354 * 5355 * Return value: 5356 * IPR_RC_JOB_RETURN 5357 **/ 5358static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 5359{ 5360 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5361 struct ipr_resource_entry *res; 5362 struct ipr_hostrcb *hostrcb, *temp; 5363 int i = 0; 5364 5365 ENTER; 5366 ioa_cfg->in_reset_reload = 0; 5367 ioa_cfg->allow_cmds = 1; 5368 ioa_cfg->reset_cmd = NULL; 5369 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 5370 5371 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 5372 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 5373 ipr_trace; 5374 break; 5375 } 5376 } 5377 schedule_work(&ioa_cfg->work_q); 5378 5379 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 5380 list_del(&hostrcb->queue); 5381 if (i++ < IPR_NUM_LOG_HCAMS) 5382 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 5383 else 5384 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 5385 } 5386 5387 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 5388 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 5389 5390 ioa_cfg->reset_retries = 0; 5391 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5392 wake_up_all(&ioa_cfg->reset_wait_q); 5393 5394 spin_unlock(ioa_cfg->host->host_lock); 5395 scsi_unblock_requests(ioa_cfg->host); 5396 spin_lock(ioa_cfg->host->host_lock); 5397 5398 if (!ioa_cfg->allow_cmds) 5399 scsi_block_requests(ioa_cfg->host); 5400 5401 LEAVE; 5402 return IPR_RC_JOB_RETURN; 5403} 5404 5405/** 5406 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 5407 * @supported_dev: supported device struct 5408 * @vpids: vendor product id struct 5409 * 5410 * Return value: 5411 * none 5412 **/ 5413static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 5414 struct ipr_std_inq_vpids *vpids) 5415{ 5416 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 5417 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 5418 supported_dev->num_records = 1; 5419 supported_dev->data_length = 5420 cpu_to_be16(sizeof(struct ipr_supported_device)); 5421 supported_dev->reserved = 0; 5422} 5423 5424/** 5425 * ipr_set_supported_devs - Send Set Supported Devices for a device 5426 * @ipr_cmd: ipr command struct 5427 * 5428 * This function send a Set Supported Devices to the adapter 5429 * 5430 * Return value: 5431 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5432 **/ 5433static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 5434{ 5435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5436 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 5437 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5438 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5439 struct ipr_resource_entry *res = ipr_cmd->u.res; 5440 5441 ipr_cmd->job_step = ipr_ioa_reset_done; 5442 5443 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 5444 if (!ipr_is_scsi_disk(res)) 5445 continue; 5446 5447 ipr_cmd->u.res = res; 5448 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); 5449 5450 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5451 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5452 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5453 5454 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 5455 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 5456 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 5457 5458 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | 5459 sizeof(struct ipr_supported_device)); 5460 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + 5461 offsetof(struct ipr_misc_cbs, supp_dev)); 5462 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5463 ioarcb->write_data_transfer_length = 5464 cpu_to_be32(sizeof(struct ipr_supported_device)); 5465 5466 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 5467 IPR_SET_SUP_DEVICE_TIMEOUT); 5468 5469 ipr_cmd->job_step = ipr_set_supported_devs; 5470 return IPR_RC_JOB_RETURN; 5471 } 5472 5473 return IPR_RC_JOB_CONTINUE; 5474} 5475 5476/** 5477 * ipr_setup_write_cache - Disable write cache if needed 5478 * @ipr_cmd: ipr command struct 5479 * 5480 * This function sets up adapters write cache to desired setting 5481 * 5482 * Return value: 5483 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5484 **/ 5485static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) 5486{ 5487 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5488 5489 ipr_cmd->job_step = ipr_set_supported_devs; 5490 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 5491 struct ipr_resource_entry, queue); 5492 5493 if (ioa_cfg->cache_state != CACHE_DISABLED) 5494 return IPR_RC_JOB_CONTINUE; 5495 5496 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5497 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5498 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 5499 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 5500 5501 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5502 5503 return IPR_RC_JOB_RETURN; 5504} 5505 5506/** 5507 * ipr_get_mode_page - Locate specified mode page 5508 * @mode_pages: mode page buffer 5509 * @page_code: page code to find 5510 * @len: minimum required length for mode page 5511 * 5512 * Return value: 5513 * pointer to mode page / NULL on failure 5514 **/ 5515static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 5516 u32 page_code, u32 len) 5517{ 5518 struct ipr_mode_page_hdr *mode_hdr; 5519 u32 page_length; 5520 u32 length; 5521 5522 if (!mode_pages || (mode_pages->hdr.length == 0)) 5523 return NULL; 5524 5525 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 5526 mode_hdr = (struct ipr_mode_page_hdr *) 5527 (mode_pages->data + mode_pages->hdr.block_desc_len); 5528 5529 while (length) { 5530 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 5531 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 5532 return mode_hdr; 5533 break; 5534 } else { 5535 page_length = (sizeof(struct ipr_mode_page_hdr) + 5536 mode_hdr->page_length); 5537 length -= page_length; 5538 mode_hdr = (struct ipr_mode_page_hdr *) 5539 ((unsigned long)mode_hdr + page_length); 5540 } 5541 } 5542 return NULL; 5543} 5544 5545/** 5546 * ipr_check_term_power - Check for term power errors 5547 * @ioa_cfg: ioa config struct 5548 * @mode_pages: IOAFP mode pages buffer 5549 * 5550 * Check the IOAFP's mode page 28 for term power errors 5551 * 5552 * Return value: 5553 * nothing 5554 **/ 5555static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 5556 struct ipr_mode_pages *mode_pages) 5557{ 5558 int i; 5559 int entry_length; 5560 struct ipr_dev_bus_entry *bus; 5561 struct ipr_mode_page28 *mode_page; 5562 5563 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5564 sizeof(struct ipr_mode_page28)); 5565 5566 entry_length = mode_page->entry_length; 5567 5568 bus = mode_page->bus; 5569 5570 for (i = 0; i < mode_page->num_entries; i++) { 5571 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 5572 dev_err(&ioa_cfg->pdev->dev, 5573 "Term power is absent on scsi bus %d\n", 5574 bus->res_addr.bus); 5575 } 5576 5577 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 5578 } 5579} 5580 5581/** 5582 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 5583 * @ioa_cfg: ioa config struct 5584 * 5585 * Looks through the config table checking for SES devices. If 5586 * the SES device is in the SES table indicating a maximum SCSI 5587 * bus speed, the speed is limited for the bus. 5588 * 5589 * Return value: 5590 * none 5591 **/ 5592static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 5593{ 5594 u32 max_xfer_rate; 5595 int i; 5596 5597 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 5598 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 5599 ioa_cfg->bus_attr[i].bus_width); 5600 5601 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 5602 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 5603 } 5604} 5605 5606/** 5607 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 5608 * @ioa_cfg: ioa config struct 5609 * @mode_pages: mode page 28 buffer 5610 * 5611 * Updates mode page 28 based on driver configuration 5612 * 5613 * Return value: 5614 * none 5615 **/ 5616static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 5617 struct ipr_mode_pages *mode_pages) 5618{ 5619 int i, entry_length; 5620 struct ipr_dev_bus_entry *bus; 5621 struct ipr_bus_attributes *bus_attr; 5622 struct ipr_mode_page28 *mode_page; 5623 5624 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5625 sizeof(struct ipr_mode_page28)); 5626 5627 entry_length = mode_page->entry_length; 5628 5629 /* Loop for each device bus entry */ 5630 for (i = 0, bus = mode_page->bus; 5631 i < mode_page->num_entries; 5632 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 5633 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 5634 dev_err(&ioa_cfg->pdev->dev, 5635 "Invalid resource address reported: 0x%08X\n", 5636 IPR_GET_PHYS_LOC(bus->res_addr)); 5637 continue; 5638 } 5639 5640 bus_attr = &ioa_cfg->bus_attr[i]; 5641 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 5642 bus->bus_width = bus_attr->bus_width; 5643 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 5644 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 5645 if (bus_attr->qas_enabled) 5646 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 5647 else 5648 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 5649 } 5650} 5651 5652/** 5653 * ipr_build_mode_select - Build a mode select command 5654 * @ipr_cmd: ipr command struct 5655 * @res_handle: resource handle to send command to 5656 * @parm: Byte 2 of Mode Sense command 5657 * @dma_addr: DMA buffer address 5658 * @xfer_len: data transfer length 5659 * 5660 * Return value: 5661 * none 5662 **/ 5663static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 5664 __be32 res_handle, u8 parm, u32 dma_addr, 5665 u8 xfer_len) 5666{ 5667 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5668 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5669 5670 ioarcb->res_handle = res_handle; 5671 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 5672 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5673 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 5674 ioarcb->cmd_pkt.cdb[1] = parm; 5675 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5676 5677 ioadl->flags_and_data_len = 5678 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); 5679 ioadl->address = cpu_to_be32(dma_addr); 5680 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5681 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); 5682} 5683 5684/** 5685 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 5686 * @ipr_cmd: ipr command struct 5687 * 5688 * This function sets up the SCSI bus attributes and sends 5689 * a Mode Select for Page 28 to activate them. 5690 * 5691 * Return value: 5692 * IPR_RC_JOB_RETURN 5693 **/ 5694static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 5695{ 5696 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5697 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5698 int length; 5699 5700 ENTER; 5701 ipr_scsi_bus_speed_limit(ioa_cfg); 5702 ipr_check_term_power(ioa_cfg, mode_pages); 5703 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 5704 length = mode_pages->hdr.length + 1; 5705 mode_pages->hdr.length = 0; 5706 5707 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5708 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5709 length); 5710 5711 ipr_cmd->job_step = ipr_setup_write_cache; 5712 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5713 5714 LEAVE; 5715 return IPR_RC_JOB_RETURN; 5716} 5717 5718/** 5719 * ipr_build_mode_sense - Builds a mode sense command 5720 * @ipr_cmd: ipr command struct 5721 * @res: resource entry struct 5722 * @parm: Byte 2 of mode sense command 5723 * @dma_addr: DMA address of mode sense buffer 5724 * @xfer_len: Size of DMA buffer 5725 * 5726 * Return value: 5727 * none 5728 **/ 5729static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 5730 __be32 res_handle, 5731 u8 parm, u32 dma_addr, u8 xfer_len) 5732{ 5733 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5734 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5735 5736 ioarcb->res_handle = res_handle; 5737 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 5738 ioarcb->cmd_pkt.cdb[2] = parm; 5739 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5740 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 5741 5742 ioadl->flags_and_data_len = 5743 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 5744 ioadl->address = cpu_to_be32(dma_addr); 5745 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5746 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 5747} 5748 5749/** 5750 * ipr_reset_cmd_failed - Handle failure of IOA reset command 5751 * @ipr_cmd: ipr command struct 5752 * 5753 * This function handles the failure of an IOA bringup command. 5754 * 5755 * Return value: 5756 * IPR_RC_JOB_RETURN 5757 **/ 5758static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 5759{ 5760 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5761 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5762 5763 dev_err(&ioa_cfg->pdev->dev, 5764 "0x%02X failed with IOASC: 0x%08X\n", 5765 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 5766 5767 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5768 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5769 return IPR_RC_JOB_RETURN; 5770} 5771 5772/** 5773 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 5774 * @ipr_cmd: ipr command struct 5775 * 5776 * This function handles the failure of a Mode Sense to the IOAFP. 5777 * Some adapters do not handle all mode pages. 5778 * 5779 * Return value: 5780 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5781 **/ 5782static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 5783{ 5784 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5785 5786 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5787 ipr_cmd->job_step = ipr_setup_write_cache; 5788 return IPR_RC_JOB_CONTINUE; 5789 } 5790 5791 return ipr_reset_cmd_failed(ipr_cmd); 5792} 5793 5794/** 5795 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 5796 * @ipr_cmd: ipr command struct 5797 * 5798 * This function send a Page 28 mode sense to the IOA to 5799 * retrieve SCSI bus attributes. 5800 * 5801 * Return value: 5802 * IPR_RC_JOB_RETURN 5803 **/ 5804static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 5805{ 5806 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5807 5808 ENTER; 5809 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5810 0x28, ioa_cfg->vpd_cbs_dma + 5811 offsetof(struct ipr_misc_cbs, mode_pages), 5812 sizeof(struct ipr_mode_pages)); 5813 5814 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 5815 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 5816 5817 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5818 5819 LEAVE; 5820 return IPR_RC_JOB_RETURN; 5821} 5822 5823/** 5824 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 5825 * @ipr_cmd: ipr command struct 5826 * 5827 * This function enables dual IOA RAID support if possible. 5828 * 5829 * Return value: 5830 * IPR_RC_JOB_RETURN 5831 **/ 5832static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 5833{ 5834 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5835 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5836 struct ipr_mode_page24 *mode_page; 5837 int length; 5838 5839 ENTER; 5840 mode_page = ipr_get_mode_page(mode_pages, 0x24, 5841 sizeof(struct ipr_mode_page24)); 5842 5843 if (mode_page) 5844 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 5845 5846 length = mode_pages->hdr.length + 1; 5847 mode_pages->hdr.length = 0; 5848 5849 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5850 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5851 length); 5852 5853 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5854 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5855 5856 LEAVE; 5857 return IPR_RC_JOB_RETURN; 5858} 5859 5860/** 5861 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 5862 * @ipr_cmd: ipr command struct 5863 * 5864 * This function handles the failure of a Mode Sense to the IOAFP. 5865 * Some adapters do not handle all mode pages. 5866 * 5867 * Return value: 5868 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5869 **/ 5870static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 5871{ 5872 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5873 5874 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5875 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5876 return IPR_RC_JOB_CONTINUE; 5877 } 5878 5879 return ipr_reset_cmd_failed(ipr_cmd); 5880} 5881 5882/** 5883 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 5884 * @ipr_cmd: ipr command struct 5885 * 5886 * This function send a mode sense to the IOA to retrieve 5887 * the IOA Advanced Function Control mode page. 5888 * 5889 * Return value: 5890 * IPR_RC_JOB_RETURN 5891 **/ 5892static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 5893{ 5894 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5895 5896 ENTER; 5897 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5898 0x24, ioa_cfg->vpd_cbs_dma + 5899 offsetof(struct ipr_misc_cbs, mode_pages), 5900 sizeof(struct ipr_mode_pages)); 5901 5902 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 5903 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 5904 5905 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5906 5907 LEAVE; 5908 return IPR_RC_JOB_RETURN; 5909} 5910 5911/** 5912 * ipr_init_res_table - Initialize the resource table 5913 * @ipr_cmd: ipr command struct 5914 * 5915 * This function looks through the existing resource table, comparing 5916 * it with the config table. This function will take care of old/new 5917 * devices and schedule adding/removing them from the mid-layer 5918 * as appropriate. 5919 * 5920 * Return value: 5921 * IPR_RC_JOB_CONTINUE 5922 **/ 5923static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 5924{ 5925 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5926 struct ipr_resource_entry *res, *temp; 5927 struct ipr_config_table_entry *cfgte; 5928 int found, i; 5929 LIST_HEAD(old_res); 5930 5931 ENTER; 5932 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) 5933 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 5934 5935 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 5936 list_move_tail(&res->queue, &old_res); 5937 5938 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { 5939 cfgte = &ioa_cfg->cfg_table->dev[i]; 5940 found = 0; 5941 5942 list_for_each_entry_safe(res, temp, &old_res, queue) { 5943 if (!memcmp(&res->cfgte.res_addr, 5944 &cfgte->res_addr, sizeof(cfgte->res_addr))) { 5945 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5946 found = 1; 5947 break; 5948 } 5949 } 5950 5951 if (!found) { 5952 if (list_empty(&ioa_cfg->free_res_q)) { 5953 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 5954 break; 5955 } 5956 5957 found = 1; 5958 res = list_entry(ioa_cfg->free_res_q.next, 5959 struct ipr_resource_entry, queue); 5960 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5961 ipr_init_res_entry(res); 5962 res->add_to_ml = 1; 5963 } 5964 5965 if (found) 5966 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); 5967 } 5968 5969 list_for_each_entry_safe(res, temp, &old_res, queue) { 5970 if (res->sdev) { 5971 res->del_from_ml = 1; 5972 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; 5973 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5974 } else { 5975 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 5976 } 5977 } 5978 5979 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 5980 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 5981 else 5982 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5983 5984 LEAVE; 5985 return IPR_RC_JOB_CONTINUE; 5986} 5987 5988/** 5989 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 5990 * @ipr_cmd: ipr command struct 5991 * 5992 * This function sends a Query IOA Configuration command 5993 * to the adapter to retrieve the IOA configuration table. 5994 * 5995 * Return value: 5996 * IPR_RC_JOB_RETURN 5997 **/ 5998static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 5999{ 6000 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6001 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6002 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6003 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6004 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6005 6006 ENTER; 6007 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6008 ioa_cfg->dual_raid = 1; 6009 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6010 ucode_vpd->major_release, ucode_vpd->card_type, 6011 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6012 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6013 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6014 6015 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6016 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; 6017 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; 6018 6019 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6020 ioarcb->read_data_transfer_length = 6021 cpu_to_be32(sizeof(struct ipr_config_table)); 6022 6023 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); 6024 ioadl->flags_and_data_len = 6025 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); 6026 6027 ipr_cmd->job_step = ipr_init_res_table; 6028 6029 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6030 6031 LEAVE; 6032 return IPR_RC_JOB_RETURN; 6033} 6034 6035/** 6036 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6037 * @ipr_cmd: ipr command struct 6038 * 6039 * This utility function sends an inquiry to the adapter. 6040 * 6041 * Return value: 6042 * none 6043 **/ 6044static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6045 u32 dma_addr, u8 xfer_len) 6046{ 6047 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6048 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6049 6050 ENTER; 6051 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6052 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6053 6054 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6055 ioarcb->cmd_pkt.cdb[1] = flags; 6056 ioarcb->cmd_pkt.cdb[2] = page; 6057 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6058 6059 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6060 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 6061 6062 ioadl->address = cpu_to_be32(dma_addr); 6063 ioadl->flags_and_data_len = 6064 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 6065 6066 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6067 LEAVE; 6068} 6069 6070/** 6071 * ipr_inquiry_page_supported - Is the given inquiry page supported 6072 * @page0: inquiry page 0 buffer 6073 * @page: page code. 6074 * 6075 * This function determines if the specified inquiry page is supported. 6076 * 6077 * Return value: 6078 * 1 if page is supported / 0 if not 6079 **/ 6080static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6081{ 6082 int i; 6083 6084 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 6085 if (page0->page[i] == page) 6086 return 1; 6087 6088 return 0; 6089} 6090 6091/** 6092 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 6093 * @ipr_cmd: ipr command struct 6094 * 6095 * This function sends a Page 0xD0 inquiry to the adapter 6096 * to retrieve adapter capabilities. 6097 * 6098 * Return value: 6099 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6100 **/ 6101static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 6102{ 6103 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6104 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6105 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6106 6107 ENTER; 6108 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 6109 memset(cap, 0, sizeof(*cap)); 6110 6111 if (ipr_inquiry_page_supported(page0, 0xD0)) { 6112 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 6113 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 6114 sizeof(struct ipr_inquiry_cap)); 6115 return IPR_RC_JOB_RETURN; 6116 } 6117 6118 LEAVE; 6119 return IPR_RC_JOB_CONTINUE; 6120} 6121 6122/** 6123 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 6124 * @ipr_cmd: ipr command struct 6125 * 6126 * This function sends a Page 3 inquiry to the adapter 6127 * to retrieve software VPD information. 6128 * 6129 * Return value: 6130 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6131 **/ 6132static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 6133{ 6134 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6135 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6136 6137 ENTER; 6138 6139 if (!ipr_inquiry_page_supported(page0, 1)) 6140 ioa_cfg->cache_state = CACHE_NONE; 6141 6142 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 6143 6144 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 6145 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 6146 sizeof(struct ipr_inquiry_page3)); 6147 6148 LEAVE; 6149 return IPR_RC_JOB_RETURN; 6150} 6151 6152/** 6153 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 6154 * @ipr_cmd: ipr command struct 6155 * 6156 * This function sends a Page 0 inquiry to the adapter 6157 * to retrieve supported inquiry pages. 6158 * 6159 * Return value: 6160 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6161 **/ 6162static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 6163{ 6164 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6165 char type[5]; 6166 6167 ENTER; 6168 6169 /* Grab the type out of the VPD and store it away */ 6170 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 6171 type[4] = '\0'; 6172 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 6173 6174 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 6175 6176 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 6177 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 6178 sizeof(struct ipr_inquiry_page0)); 6179 6180 LEAVE; 6181 return IPR_RC_JOB_RETURN; 6182} 6183 6184/** 6185 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 6186 * @ipr_cmd: ipr command struct 6187 * 6188 * This function sends a standard inquiry to the adapter. 6189 * 6190 * Return value: 6191 * IPR_RC_JOB_RETURN 6192 **/ 6193static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 6194{ 6195 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6196 6197 ENTER; 6198 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 6199 6200 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 6201 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 6202 sizeof(struct ipr_ioa_vpd)); 6203 6204 LEAVE; 6205 return IPR_RC_JOB_RETURN; 6206} 6207 6208/** 6209 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. 6210 * @ipr_cmd: ipr command struct 6211 * 6212 * This function send an Identify Host Request Response Queue 6213 * command to establish the HRRQ with the adapter. 6214 * 6215 * Return value: 6216 * IPR_RC_JOB_RETURN 6217 **/ 6218static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) 6219{ 6220 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6221 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6222 6223 ENTER; 6224 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 6225 6226 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 6227 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6228 6229 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6230 ioarcb->cmd_pkt.cdb[2] = 6231 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; 6232 ioarcb->cmd_pkt.cdb[3] = 6233 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; 6234 ioarcb->cmd_pkt.cdb[4] = 6235 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; 6236 ioarcb->cmd_pkt.cdb[5] = 6237 ((u32) ioa_cfg->host_rrq_dma) & 0xff; 6238 ioarcb->cmd_pkt.cdb[7] = 6239 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 6240 ioarcb->cmd_pkt.cdb[8] = 6241 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 6242 6243 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 6244 6245 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6246 6247 LEAVE; 6248 return IPR_RC_JOB_RETURN; 6249} 6250 6251/** 6252 * ipr_reset_timer_done - Adapter reset timer function 6253 * @ipr_cmd: ipr command struct 6254 * 6255 * Description: This function is used in adapter reset processing 6256 * for timing events. If the reset_cmd pointer in the IOA 6257 * config struct is not this adapter's we are doing nested 6258 * resets and fail_all_ops will take care of freeing the 6259 * command block. 6260 * 6261 * Return value: 6262 * none 6263 **/ 6264static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 6265{ 6266 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6267 unsigned long lock_flags = 0; 6268 6269 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 6270 6271 if (ioa_cfg->reset_cmd == ipr_cmd) { 6272 list_del(&ipr_cmd->queue); 6273 ipr_cmd->done(ipr_cmd); 6274 } 6275 6276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 6277} 6278 6279/** 6280 * ipr_reset_start_timer - Start a timer for adapter reset job 6281 * @ipr_cmd: ipr command struct 6282 * @timeout: timeout value 6283 * 6284 * Description: This function is used in adapter reset processing 6285 * for timing events. If the reset_cmd pointer in the IOA 6286 * config struct is not this adapter's we are doing nested 6287 * resets and fail_all_ops will take care of freeing the 6288 * command block. 6289 * 6290 * Return value: 6291 * none 6292 **/ 6293static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 6294 unsigned long timeout) 6295{ 6296 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6297 ipr_cmd->done = ipr_reset_ioa_job; 6298 6299 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6300 ipr_cmd->timer.expires = jiffies + timeout; 6301 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 6302 add_timer(&ipr_cmd->timer); 6303} 6304 6305/** 6306 * ipr_init_ioa_mem - Initialize ioa_cfg control block 6307 * @ioa_cfg: ioa cfg struct 6308 * 6309 * Return value: 6310 * nothing 6311 **/ 6312static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 6313{ 6314 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 6315 6316 /* Initialize Host RRQ pointers */ 6317 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 6318 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 6319 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 6320 ioa_cfg->toggle_bit = 1; 6321 6322 /* Zero out config table */ 6323 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); 6324} 6325 6326/** 6327 * ipr_reset_enable_ioa - Enable the IOA following a reset. 6328 * @ipr_cmd: ipr command struct 6329 * 6330 * This function reinitializes some control blocks and 6331 * enables destructive diagnostics on the adapter. 6332 * 6333 * Return value: 6334 * IPR_RC_JOB_RETURN 6335 **/ 6336static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 6337{ 6338 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6339 volatile u32 int_reg; 6340 6341 ENTER; 6342 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; 6343 ipr_init_ioa_mem(ioa_cfg); 6344 6345 ioa_cfg->allow_interrupts = 1; 6346 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6347 6348 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 6349 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 6350 ioa_cfg->regs.clr_interrupt_mask_reg); 6351 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6352 return IPR_RC_JOB_CONTINUE; 6353 } 6354 6355 /* Enable destructive diagnostics on IOA */ 6356 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); 6357 6358 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); 6359 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6360 6361 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 6362 6363 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6364 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 6365 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 6366 ipr_cmd->done = ipr_reset_ioa_job; 6367 add_timer(&ipr_cmd->timer); 6368 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6369 6370 LEAVE; 6371 return IPR_RC_JOB_RETURN; 6372} 6373 6374/** 6375 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 6376 * @ipr_cmd: ipr command struct 6377 * 6378 * This function is invoked when an adapter dump has run out 6379 * of processing time. 6380 * 6381 * Return value: 6382 * IPR_RC_JOB_CONTINUE 6383 **/ 6384static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 6385{ 6386 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6387 6388 if (ioa_cfg->sdt_state == GET_DUMP) 6389 ioa_cfg->sdt_state = ABORT_DUMP; 6390 6391 ipr_cmd->job_step = ipr_reset_alert; 6392 6393 return IPR_RC_JOB_CONTINUE; 6394} 6395 6396/** 6397 * ipr_unit_check_no_data - Log a unit check/no data error log 6398 * @ioa_cfg: ioa config struct 6399 * 6400 * Logs an error indicating the adapter unit checked, but for some 6401 * reason, we were unable to fetch the unit check buffer. 6402 * 6403 * Return value: 6404 * nothing 6405 **/ 6406static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 6407{ 6408 ioa_cfg->errors_logged++; 6409 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 6410} 6411 6412/** 6413 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 6414 * @ioa_cfg: ioa config struct 6415 * 6416 * Fetches the unit check buffer from the adapter by clocking the data 6417 * through the mailbox register. 6418 * 6419 * Return value: 6420 * nothing 6421 **/ 6422static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 6423{ 6424 unsigned long mailbox; 6425 struct ipr_hostrcb *hostrcb; 6426 struct ipr_uc_sdt sdt; 6427 int rc, length; 6428 u32 ioasc; 6429 6430 mailbox = readl(ioa_cfg->ioa_mailbox); 6431 6432 if (!ipr_sdt_is_fmt2(mailbox)) { 6433 ipr_unit_check_no_data(ioa_cfg); 6434 return; 6435 } 6436 6437 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 6438 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 6439 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 6440 6441 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || 6442 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { 6443 ipr_unit_check_no_data(ioa_cfg); 6444 return; 6445 } 6446 6447 /* Find length of the first sdt entry (UC buffer) */ 6448 length = (be32_to_cpu(sdt.entry[0].end_offset) - 6449 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; 6450 6451 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 6452 struct ipr_hostrcb, queue); 6453 list_del(&hostrcb->queue); 6454 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 6455 6456 rc = ipr_get_ldump_data_section(ioa_cfg, 6457 be32_to_cpu(sdt.entry[0].bar_str_offset), 6458 (__be32 *)&hostrcb->hcam, 6459 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 6460 6461 if (!rc) { 6462 ipr_handle_log_data(ioa_cfg, hostrcb); 6463 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 6464 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 6465 ioa_cfg->sdt_state == GET_DUMP) 6466 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 6467 } else 6468 ipr_unit_check_no_data(ioa_cfg); 6469 6470 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 6471} 6472 6473/** 6474 * ipr_reset_restore_cfg_space - Restore PCI config space. 6475 * @ipr_cmd: ipr command struct 6476 * 6477 * Description: This function restores the saved PCI config space of 6478 * the adapter, fails all outstanding ops back to the callers, and 6479 * fetches the dump/unit check if applicable to this reset. 6480 * 6481 * Return value: 6482 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6483 **/ 6484static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 6485{ 6486 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6487 int rc; 6488 6489 ENTER; 6490 rc = pci_restore_state(ioa_cfg->pdev); 6491 6492 if (rc != PCIBIOS_SUCCESSFUL) { 6493 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6494 return IPR_RC_JOB_CONTINUE; 6495 } 6496 6497 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 6498 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6499 return IPR_RC_JOB_CONTINUE; 6500 } 6501 6502 ipr_fail_all_ops(ioa_cfg); 6503 6504 if (ioa_cfg->ioa_unit_checked) { 6505 ioa_cfg->ioa_unit_checked = 0; 6506 ipr_get_unit_check_buffer(ioa_cfg); 6507 ipr_cmd->job_step = ipr_reset_alert; 6508 ipr_reset_start_timer(ipr_cmd, 0); 6509 return IPR_RC_JOB_RETURN; 6510 } 6511 6512 if (ioa_cfg->in_ioa_bringdown) { 6513 ipr_cmd->job_step = ipr_ioa_bringdown_done; 6514 } else { 6515 ipr_cmd->job_step = ipr_reset_enable_ioa; 6516 6517 if (GET_DUMP == ioa_cfg->sdt_state) { 6518 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 6519 ipr_cmd->job_step = ipr_reset_wait_for_dump; 6520 schedule_work(&ioa_cfg->work_q); 6521 return IPR_RC_JOB_RETURN; 6522 } 6523 } 6524 6525 ENTER; 6526 return IPR_RC_JOB_CONTINUE; 6527} 6528 6529/** 6530 * ipr_reset_bist_done - BIST has completed on the adapter. 6531 * @ipr_cmd: ipr command struct 6532 * 6533 * Description: Unblock config space and resume the reset process. 6534 * 6535 * Return value: 6536 * IPR_RC_JOB_CONTINUE 6537 **/ 6538static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 6539{ 6540 ENTER; 6541 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6542 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 6543 LEAVE; 6544 return IPR_RC_JOB_CONTINUE; 6545} 6546 6547/** 6548 * ipr_reset_start_bist - Run BIST on the adapter. 6549 * @ipr_cmd: ipr command struct 6550 * 6551 * Description: This function runs BIST on the adapter, then delays 2 seconds. 6552 * 6553 * Return value: 6554 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6555 **/ 6556static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 6557{ 6558 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6559 int rc; 6560 6561 ENTER; 6562 pci_block_user_cfg_access(ioa_cfg->pdev); 6563 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 6564 6565 if (rc != PCIBIOS_SUCCESSFUL) { 6566 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6567 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6568 rc = IPR_RC_JOB_CONTINUE; 6569 } else { 6570 ipr_cmd->job_step = ipr_reset_bist_done; 6571 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 6572 rc = IPR_RC_JOB_RETURN; 6573 } 6574 6575 LEAVE; 6576 return rc; 6577} 6578 6579/** 6580 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 6581 * @ipr_cmd: ipr command struct 6582 * 6583 * Description: This clears PCI reset to the adapter and delays two seconds. 6584 * 6585 * Return value: 6586 * IPR_RC_JOB_RETURN 6587 **/ 6588static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 6589{ 6590 ENTER; 6591 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 6592 ipr_cmd->job_step = ipr_reset_bist_done; 6593 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 6594 LEAVE; 6595 return IPR_RC_JOB_RETURN; 6596} 6597 6598/** 6599 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 6600 * @ipr_cmd: ipr command struct 6601 * 6602 * Description: This asserts PCI reset to the adapter. 6603 * 6604 * Return value: 6605 * IPR_RC_JOB_RETURN 6606 **/ 6607static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 6608{ 6609 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6610 struct pci_dev *pdev = ioa_cfg->pdev; 6611 6612 ENTER; 6613 pci_block_user_cfg_access(pdev); 6614 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 6615 ipr_cmd->job_step = ipr_reset_slot_reset_done; 6616 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 6617 LEAVE; 6618 return IPR_RC_JOB_RETURN; 6619} 6620 6621/** 6622 * ipr_reset_allowed - Query whether or not IOA can be reset 6623 * @ioa_cfg: ioa config struct 6624 * 6625 * Return value: 6626 * 0 if reset not allowed / non-zero if reset is allowed 6627 **/ 6628static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 6629{ 6630 volatile u32 temp_reg; 6631 6632 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6633 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 6634} 6635 6636/** 6637 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 6638 * @ipr_cmd: ipr command struct 6639 * 6640 * Description: This function waits for adapter permission to run BIST, 6641 * then runs BIST. If the adapter does not give permission after a 6642 * reasonable time, we will reset the adapter anyway. The impact of 6643 * resetting the adapter without warning the adapter is the risk of 6644 * losing the persistent error log on the adapter. If the adapter is 6645 * reset while it is writing to the flash on the adapter, the flash 6646 * segment will have bad ECC and be zeroed. 6647 * 6648 * Return value: 6649 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6650 **/ 6651static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 6652{ 6653 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6654 int rc = IPR_RC_JOB_RETURN; 6655 6656 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 6657 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 6658 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6659 } else { 6660 ipr_cmd->job_step = ioa_cfg->reset; 6661 rc = IPR_RC_JOB_CONTINUE; 6662 } 6663 6664 return rc; 6665} 6666 6667/** 6668 * ipr_reset_alert_part2 - Alert the adapter of a pending reset 6669 * @ipr_cmd: ipr command struct 6670 * 6671 * Description: This function alerts the adapter that it will be reset. 6672 * If memory space is not currently enabled, proceed directly 6673 * to running BIST on the adapter. The timer must always be started 6674 * so we guarantee we do not run BIST from ipr_isr. 6675 * 6676 * Return value: 6677 * IPR_RC_JOB_RETURN 6678 **/ 6679static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 6680{ 6681 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6682 u16 cmd_reg; 6683 int rc; 6684 6685 ENTER; 6686 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 6687 6688 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 6689 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 6690 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); 6691 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 6692 } else { 6693 ipr_cmd->job_step = ioa_cfg->reset; 6694 } 6695 6696 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 6697 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6698 6699 LEAVE; 6700 return IPR_RC_JOB_RETURN; 6701} 6702 6703/** 6704 * ipr_reset_ucode_download_done - Microcode download completion 6705 * @ipr_cmd: ipr command struct 6706 * 6707 * Description: This function unmaps the microcode download buffer. 6708 * 6709 * Return value: 6710 * IPR_RC_JOB_CONTINUE 6711 **/ 6712static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 6713{ 6714 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6715 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 6716 6717 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 6718 sglist->num_sg, DMA_TO_DEVICE); 6719 6720 ipr_cmd->job_step = ipr_reset_alert; 6721 return IPR_RC_JOB_CONTINUE; 6722} 6723 6724/** 6725 * ipr_reset_ucode_download - Download microcode to the adapter 6726 * @ipr_cmd: ipr command struct 6727 * 6728 * Description: This function checks to see if it there is microcode 6729 * to download to the adapter. If there is, a download is performed. 6730 * 6731 * Return value: 6732 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6733 **/ 6734static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 6735{ 6736 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6737 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 6738 6739 ENTER; 6740 ipr_cmd->job_step = ipr_reset_alert; 6741 6742 if (!sglist) 6743 return IPR_RC_JOB_CONTINUE; 6744 6745 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6746 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6747 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 6748 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 6749 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 6750 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 6751 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 6752 6753 ipr_build_ucode_ioadl(ipr_cmd, sglist); 6754 ipr_cmd->job_step = ipr_reset_ucode_download_done; 6755 6756 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6757 IPR_WRITE_BUFFER_TIMEOUT); 6758 6759 LEAVE; 6760 return IPR_RC_JOB_RETURN; 6761} 6762 6763/** 6764 * ipr_reset_shutdown_ioa - Shutdown the adapter 6765 * @ipr_cmd: ipr command struct 6766 * 6767 * Description: This function issues an adapter shutdown of the 6768 * specified type to the specified adapter as part of the 6769 * adapter reset job. 6770 * 6771 * Return value: 6772 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6773 **/ 6774static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 6775{ 6776 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6777 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 6778 unsigned long timeout; 6779 int rc = IPR_RC_JOB_CONTINUE; 6780 6781 ENTER; 6782 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 6783 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6784 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6785 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 6786 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 6787 6788 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 6789 timeout = IPR_SHUTDOWN_TIMEOUT; 6790 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 6791 timeout = IPR_INTERNAL_TIMEOUT; 6792 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6793 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 6794 else 6795 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 6796 6797 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 6798 6799 rc = IPR_RC_JOB_RETURN; 6800 ipr_cmd->job_step = ipr_reset_ucode_download; 6801 } else 6802 ipr_cmd->job_step = ipr_reset_alert; 6803 6804 LEAVE; 6805 return rc; 6806} 6807 6808/** 6809 * ipr_reset_ioa_job - Adapter reset job 6810 * @ipr_cmd: ipr command struct 6811 * 6812 * Description: This function is the job router for the adapter reset job. 6813 * 6814 * Return value: 6815 * none 6816 **/ 6817static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 6818{ 6819 u32 rc, ioasc; 6820 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6821 6822 do { 6823 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6824 6825 if (ioa_cfg->reset_cmd != ipr_cmd) { 6826 /* 6827 * We are doing nested adapter resets and this is 6828 * not the current reset job. 6829 */ 6830 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6831 return; 6832 } 6833 6834 if (IPR_IOASC_SENSE_KEY(ioasc)) { 6835 rc = ipr_cmd->job_step_failed(ipr_cmd); 6836 if (rc == IPR_RC_JOB_RETURN) 6837 return; 6838 } 6839 6840 ipr_reinit_ipr_cmnd(ipr_cmd); 6841 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 6842 rc = ipr_cmd->job_step(ipr_cmd); 6843 } while(rc == IPR_RC_JOB_CONTINUE); 6844} 6845 6846/** 6847 * _ipr_initiate_ioa_reset - Initiate an adapter reset 6848 * @ioa_cfg: ioa config struct 6849 * @job_step: first job step of reset job 6850 * @shutdown_type: shutdown type 6851 * 6852 * Description: This function will initiate the reset of the given adapter 6853 * starting at the selected job step. 6854 * If the caller needs to wait on the completion of the reset, 6855 * the caller must sleep on the reset_wait_q. 6856 * 6857 * Return value: 6858 * none 6859 **/ 6860static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6861 int (*job_step) (struct ipr_cmnd *), 6862 enum ipr_shutdown_type shutdown_type) 6863{ 6864 struct ipr_cmnd *ipr_cmd; 6865 6866 ioa_cfg->in_reset_reload = 1; 6867 ioa_cfg->allow_cmds = 0; 6868 scsi_block_requests(ioa_cfg->host); 6869 6870 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 6871 ioa_cfg->reset_cmd = ipr_cmd; 6872 ipr_cmd->job_step = job_step; 6873 ipr_cmd->u.shutdown_type = shutdown_type; 6874 6875 ipr_reset_ioa_job(ipr_cmd); 6876} 6877 6878/** 6879 * ipr_initiate_ioa_reset - Initiate an adapter reset 6880 * @ioa_cfg: ioa config struct 6881 * @shutdown_type: shutdown type 6882 * 6883 * Description: This function will initiate the reset of the given adapter. 6884 * If the caller needs to wait on the completion of the reset, 6885 * the caller must sleep on the reset_wait_q. 6886 * 6887 * Return value: 6888 * none 6889 **/ 6890static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6891 enum ipr_shutdown_type shutdown_type) 6892{ 6893 if (ioa_cfg->ioa_is_dead) 6894 return; 6895 6896 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 6897 ioa_cfg->sdt_state = ABORT_DUMP; 6898 6899 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 6900 dev_err(&ioa_cfg->pdev->dev, 6901 "IOA taken offline - error recovery failed\n"); 6902 6903 ioa_cfg->reset_retries = 0; 6904 ioa_cfg->ioa_is_dead = 1; 6905 6906 if (ioa_cfg->in_ioa_bringdown) { 6907 ioa_cfg->reset_cmd = NULL; 6908 ioa_cfg->in_reset_reload = 0; 6909 ipr_fail_all_ops(ioa_cfg); 6910 wake_up_all(&ioa_cfg->reset_wait_q); 6911 6912 spin_unlock_irq(ioa_cfg->host->host_lock); 6913 scsi_unblock_requests(ioa_cfg->host); 6914 spin_lock_irq(ioa_cfg->host->host_lock); 6915 return; 6916 } else { 6917 ioa_cfg->in_ioa_bringdown = 1; 6918 shutdown_type = IPR_SHUTDOWN_NONE; 6919 } 6920 } 6921 6922 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 6923 shutdown_type); 6924} 6925 6926/** 6927 * ipr_reset_freeze - Hold off all I/O activity 6928 * @ipr_cmd: ipr command struct 6929 * 6930 * Description: If the PCI slot is frozen, hold off all I/O 6931 * activity; then, as soon as the slot is available again, 6932 * initiate an adapter reset. 6933 */ 6934static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 6935{ 6936 /* Disallow new interrupts, avoid loop */ 6937 ipr_cmd->ioa_cfg->allow_interrupts = 0; 6938 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6939 ipr_cmd->done = ipr_reset_ioa_job; 6940 return IPR_RC_JOB_RETURN; 6941} 6942 6943/** 6944 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 6945 * @pdev: PCI device struct 6946 * 6947 * Description: This routine is called to tell us that the PCI bus 6948 * is down. Can't do anything here, except put the device driver 6949 * into a holding pattern, waiting for the PCI bus to come back. 6950 */ 6951static void ipr_pci_frozen(struct pci_dev *pdev) 6952{ 6953 unsigned long flags = 0; 6954 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6955 6956 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6957 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 6958 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6959} 6960 6961/** 6962 * ipr_pci_slot_reset - Called when PCI slot has been reset. 6963 * @pdev: PCI device struct 6964 * 6965 * Description: This routine is called by the pci error recovery 6966 * code after the PCI slot has been reset, just before we 6967 * should resume normal operations. 6968 */ 6969static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 6970{ 6971 unsigned long flags = 0; 6972 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6973 6974 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6975 if (ioa_cfg->needs_warm_reset) 6976 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6977 else 6978 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 6979 IPR_SHUTDOWN_NONE); 6980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6981 return PCI_ERS_RESULT_RECOVERED; 6982} 6983 6984/** 6985 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 6986 * @pdev: PCI device struct 6987 * 6988 * Description: This routine is called when the PCI bus has 6989 * permanently failed. 6990 */ 6991static void ipr_pci_perm_failure(struct pci_dev *pdev) 6992{ 6993 unsigned long flags = 0; 6994 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6995 6996 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6997 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 6998 ioa_cfg->sdt_state = ABORT_DUMP; 6999 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 7000 ioa_cfg->in_ioa_bringdown = 1; 7001 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7002 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7003} 7004 7005/** 7006 * ipr_pci_error_detected - Called when a PCI error is detected. 7007 * @pdev: PCI device struct 7008 * @state: PCI channel state 7009 * 7010 * Description: Called when a PCI error is detected. 7011 * 7012 * Return value: 7013 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7014 */ 7015static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 7016 pci_channel_state_t state) 7017{ 7018 switch (state) { 7019 case pci_channel_io_frozen: 7020 ipr_pci_frozen(pdev); 7021 return PCI_ERS_RESULT_NEED_RESET; 7022 case pci_channel_io_perm_failure: 7023 ipr_pci_perm_failure(pdev); 7024 return PCI_ERS_RESULT_DISCONNECT; 7025 break; 7026 default: 7027 break; 7028 } 7029 return PCI_ERS_RESULT_NEED_RESET; 7030} 7031 7032/** 7033 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 7034 * @ioa_cfg: ioa cfg struct 7035 * 7036 * Description: This is the second phase of adapter intialization 7037 * This function takes care of initilizing the adapter to the point 7038 * where it can accept new commands. 7039 7040 * Return value: 7041 * 0 on success / -EIO on failure 7042 **/ 7043static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 7044{ 7045 int rc = 0; 7046 unsigned long host_lock_flags = 0; 7047 7048 ENTER; 7049 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7050 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 7051 if (ioa_cfg->needs_hard_reset) { 7052 ioa_cfg->needs_hard_reset = 0; 7053 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7054 } else 7055 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 7056 IPR_SHUTDOWN_NONE); 7057 7058 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7059 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7060 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7061 7062 if (ioa_cfg->ioa_is_dead) { 7063 rc = -EIO; 7064 } else if (ipr_invalid_adapter(ioa_cfg)) { 7065 if (!ipr_testmode) 7066 rc = -EIO; 7067 7068 dev_err(&ioa_cfg->pdev->dev, 7069 "Adapter not supported in this hardware configuration.\n"); 7070 } 7071 7072 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7073 7074 LEAVE; 7075 return rc; 7076} 7077 7078/** 7079 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 7080 * @ioa_cfg: ioa config struct 7081 * 7082 * Return value: 7083 * none 7084 **/ 7085static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7086{ 7087 int i; 7088 7089 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7090 if (ioa_cfg->ipr_cmnd_list[i]) 7091 pci_pool_free(ioa_cfg->ipr_cmd_pool, 7092 ioa_cfg->ipr_cmnd_list[i], 7093 ioa_cfg->ipr_cmnd_list_dma[i]); 7094 7095 ioa_cfg->ipr_cmnd_list[i] = NULL; 7096 } 7097 7098 if (ioa_cfg->ipr_cmd_pool) 7099 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 7100 7101 ioa_cfg->ipr_cmd_pool = NULL; 7102} 7103 7104/** 7105 * ipr_free_mem - Frees memory allocated for an adapter 7106 * @ioa_cfg: ioa cfg struct 7107 * 7108 * Return value: 7109 * nothing 7110 **/ 7111static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 7112{ 7113 int i; 7114 7115 kfree(ioa_cfg->res_entries); 7116 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 7117 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7118 ipr_free_cmd_blks(ioa_cfg); 7119 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7120 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7121 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), 7122 ioa_cfg->cfg_table, 7123 ioa_cfg->cfg_table_dma); 7124 7125 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7126 pci_free_consistent(ioa_cfg->pdev, 7127 sizeof(struct ipr_hostrcb), 7128 ioa_cfg->hostrcb[i], 7129 ioa_cfg->hostrcb_dma[i]); 7130 } 7131 7132 ipr_free_dump(ioa_cfg); 7133 kfree(ioa_cfg->trace); 7134} 7135 7136/** 7137 * ipr_free_all_resources - Free all allocated resources for an adapter. 7138 * @ipr_cmd: ipr command struct 7139 * 7140 * This function frees all allocated resources for the 7141 * specified adapter. 7142 * 7143 * Return value: 7144 * none 7145 **/ 7146static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 7147{ 7148 struct pci_dev *pdev = ioa_cfg->pdev; 7149 7150 ENTER; 7151 free_irq(pdev->irq, ioa_cfg); 7152 pci_disable_msi(pdev); 7153 iounmap(ioa_cfg->hdw_dma_regs); 7154 pci_release_regions(pdev); 7155 ipr_free_mem(ioa_cfg); 7156 scsi_host_put(ioa_cfg->host); 7157 pci_disable_device(pdev); 7158 LEAVE; 7159} 7160 7161/** 7162 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 7163 * @ioa_cfg: ioa config struct 7164 * 7165 * Return value: 7166 * 0 on success / -ENOMEM on allocation failure 7167 **/ 7168static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7169{ 7170 struct ipr_cmnd *ipr_cmd; 7171 struct ipr_ioarcb *ioarcb; 7172 dma_addr_t dma_addr; 7173 int i; 7174 7175 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 7176 sizeof(struct ipr_cmnd), 8, 0); 7177 7178 if (!ioa_cfg->ipr_cmd_pool) 7179 return -ENOMEM; 7180 7181 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7182 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 7183 7184 if (!ipr_cmd) { 7185 ipr_free_cmd_blks(ioa_cfg); 7186 return -ENOMEM; 7187 } 7188 7189 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 7190 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 7191 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 7192 7193 ioarcb = &ipr_cmd->ioarcb; 7194 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 7195 ioarcb->host_response_handle = cpu_to_be32(i << 2); 7196 ioarcb->write_ioadl_addr = 7197 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 7198 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 7199 ioarcb->ioasa_host_pci_addr = 7200 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 7201 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 7202 ipr_cmd->cmd_index = i; 7203 ipr_cmd->ioa_cfg = ioa_cfg; 7204 ipr_cmd->sense_buffer_dma = dma_addr + 7205 offsetof(struct ipr_cmnd, sense_buffer); 7206 7207 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7208 } 7209 7210 return 0; 7211} 7212 7213/** 7214 * ipr_alloc_mem - Allocate memory for an adapter 7215 * @ioa_cfg: ioa config struct 7216 * 7217 * Return value: 7218 * 0 on success / non-zero for error 7219 **/ 7220static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 7221{ 7222 struct pci_dev *pdev = ioa_cfg->pdev; 7223 int i, rc = -ENOMEM; 7224 7225 ENTER; 7226 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 7227 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); 7228 7229 if (!ioa_cfg->res_entries) 7230 goto out; 7231 7232 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) 7233 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 7234 7235 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 7236 sizeof(struct ipr_misc_cbs), 7237 &ioa_cfg->vpd_cbs_dma); 7238 7239 if (!ioa_cfg->vpd_cbs) 7240 goto out_free_res_entries; 7241 7242 if (ipr_alloc_cmd_blks(ioa_cfg)) 7243 goto out_free_vpd_cbs; 7244 7245 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 7246 sizeof(u32) * IPR_NUM_CMD_BLKS, 7247 &ioa_cfg->host_rrq_dma); 7248 7249 if (!ioa_cfg->host_rrq) 7250 goto out_ipr_free_cmd_blocks; 7251 7252 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 7253 sizeof(struct ipr_config_table), 7254 &ioa_cfg->cfg_table_dma); 7255 7256 if (!ioa_cfg->cfg_table) 7257 goto out_free_host_rrq; 7258 7259 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7260 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 7261 sizeof(struct ipr_hostrcb), 7262 &ioa_cfg->hostrcb_dma[i]); 7263 7264 if (!ioa_cfg->hostrcb[i]) 7265 goto out_free_hostrcb_dma; 7266 7267 ioa_cfg->hostrcb[i]->hostrcb_dma = 7268 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 7269 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 7270 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 7271 } 7272 7273 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 7274 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 7275 7276 if (!ioa_cfg->trace) 7277 goto out_free_hostrcb_dma; 7278 7279 rc = 0; 7280out: 7281 LEAVE; 7282 return rc; 7283 7284out_free_hostrcb_dma: 7285 while (i-- > 0) { 7286 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 7287 ioa_cfg->hostrcb[i], 7288 ioa_cfg->hostrcb_dma[i]); 7289 } 7290 pci_free_consistent(pdev, sizeof(struct ipr_config_table), 7291 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); 7292out_free_host_rrq: 7293 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7294 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7295out_ipr_free_cmd_blocks: 7296 ipr_free_cmd_blks(ioa_cfg); 7297out_free_vpd_cbs: 7298 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 7299 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7300out_free_res_entries: 7301 kfree(ioa_cfg->res_entries); 7302 goto out; 7303} 7304 7305/** 7306 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 7307 * @ioa_cfg: ioa config struct 7308 * 7309 * Return value: 7310 * none 7311 **/ 7312static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 7313{ 7314 int i; 7315 7316 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 7317 ioa_cfg->bus_attr[i].bus = i; 7318 ioa_cfg->bus_attr[i].qas_enabled = 0; 7319 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 7320 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 7321 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 7322 else 7323 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 7324 } 7325} 7326 7327/** 7328 * ipr_init_ioa_cfg - Initialize IOA config struct 7329 * @ioa_cfg: ioa config struct 7330 * @host: scsi host struct 7331 * @pdev: PCI dev struct 7332 * 7333 * Return value: 7334 * none 7335 **/ 7336static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 7337 struct Scsi_Host *host, struct pci_dev *pdev) 7338{ 7339 const struct ipr_interrupt_offsets *p; 7340 struct ipr_interrupts *t; 7341 void __iomem *base; 7342 7343 ioa_cfg->host = host; 7344 ioa_cfg->pdev = pdev; 7345 ioa_cfg->log_level = ipr_log_level; 7346 ioa_cfg->doorbell = IPR_DOORBELL; 7347 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 7348 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 7349 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 7350 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 7351 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 7352 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 7353 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 7354 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 7355 7356 INIT_LIST_HEAD(&ioa_cfg->free_q); 7357 INIT_LIST_HEAD(&ioa_cfg->pending_q); 7358 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 7359 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 7360 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 7361 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 7362 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 7363 init_waitqueue_head(&ioa_cfg->reset_wait_q); 7364 ioa_cfg->sdt_state = INACTIVE; 7365 if (ipr_enable_cache) 7366 ioa_cfg->cache_state = CACHE_ENABLED; 7367 else 7368 ioa_cfg->cache_state = CACHE_DISABLED; 7369 7370 ipr_initialize_bus_attr(ioa_cfg); 7371 7372 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 7373 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 7374 host->max_channel = IPR_MAX_BUS_TO_SCAN; 7375 host->unique_id = host->host_no; 7376 host->max_cmd_len = IPR_MAX_CDB_LEN; 7377 pci_set_drvdata(pdev, ioa_cfg); 7378 7379 p = &ioa_cfg->chip_cfg->regs; 7380 t = &ioa_cfg->regs; 7381 base = ioa_cfg->hdw_dma_regs; 7382 7383 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 7384 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 7385 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 7386 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 7387 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 7388 t->ioarrin_reg = base + p->ioarrin_reg; 7389 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 7390 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 7391 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 7392} 7393 7394/** 7395 * ipr_get_chip_cfg - Find adapter chip configuration 7396 * @dev_id: PCI device id struct 7397 * 7398 * Return value: 7399 * ptr to chip config on success / NULL on failure 7400 **/ 7401static const struct ipr_chip_cfg_t * __devinit 7402ipr_get_chip_cfg(const struct pci_device_id *dev_id) 7403{ 7404 int i; 7405 7406 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 7407 if (ipr_chip[i].vendor == dev_id->vendor && 7408 ipr_chip[i].device == dev_id->device) 7409 return ipr_chip[i].cfg; 7410 return NULL; 7411} 7412 7413/** 7414 * ipr_probe_ioa - Allocates memory and does first stage of initialization 7415 * @pdev: PCI device struct 7416 * @dev_id: PCI device id struct 7417 * 7418 * Return value: 7419 * 0 on success / non-zero on failure 7420 **/ 7421static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 7422 const struct pci_device_id *dev_id) 7423{ 7424 struct ipr_ioa_cfg *ioa_cfg; 7425 struct Scsi_Host *host; 7426 unsigned long ipr_regs_pci; 7427 void __iomem *ipr_regs; 7428 int rc = PCIBIOS_SUCCESSFUL; 7429 volatile u32 mask, uproc, interrupts; 7430 7431 ENTER; 7432 7433 if ((rc = pci_enable_device(pdev))) { 7434 dev_err(&pdev->dev, "Cannot enable adapter\n"); 7435 goto out; 7436 } 7437 7438 if (!(rc = pci_enable_msi(pdev))) 7439 dev_info(&pdev->dev, "MSI enabled\n"); 7440 else if (ipr_debug) 7441 dev_info(&pdev->dev, "Cannot enable MSI\n"); 7442 7443 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 7444 7445 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 7446 7447 if (!host) { 7448 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 7449 rc = -ENOMEM; 7450 goto out_disable; 7451 } 7452 7453 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 7454 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 7455 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 7456 sata_port_info.flags, &ipr_sata_ops); 7457 7458 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); 7459 7460 if (!ioa_cfg->chip_cfg) { 7461 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 7462 dev_id->vendor, dev_id->device); 7463 goto out_scsi_host_put; 7464 } 7465 7466 if (ipr_transop_timeout) 7467 ioa_cfg->transop_timeout = ipr_transop_timeout; 7468 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 7469 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 7470 else 7471 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 7472 7473 ioa_cfg->revid = pdev->revision; 7474 7475 ipr_regs_pci = pci_resource_start(pdev, 0); 7476 7477 rc = pci_request_regions(pdev, IPR_NAME); 7478 if (rc < 0) { 7479 dev_err(&pdev->dev, 7480 "Couldn't register memory range of registers\n"); 7481 goto out_scsi_host_put; 7482 } 7483 7484 ipr_regs = pci_ioremap_bar(pdev, 0); 7485 7486 if (!ipr_regs) { 7487 dev_err(&pdev->dev, 7488 "Couldn't map memory range of registers\n"); 7489 rc = -ENOMEM; 7490 goto out_release_regions; 7491 } 7492 7493 ioa_cfg->hdw_dma_regs = ipr_regs; 7494 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 7495 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 7496 7497 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 7498 7499 pci_set_master(pdev); 7500 7501 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 7502 if (rc < 0) { 7503 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 7504 goto cleanup_nomem; 7505 } 7506 7507 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 7508 ioa_cfg->chip_cfg->cache_line_size); 7509 7510 if (rc != PCIBIOS_SUCCESSFUL) { 7511 dev_err(&pdev->dev, "Write of cache line size failed\n"); 7512 rc = -EIO; 7513 goto cleanup_nomem; 7514 } 7515 7516 /* Save away PCI config space for use following IOA reset */ 7517 rc = pci_save_state(pdev); 7518 7519 if (rc != PCIBIOS_SUCCESSFUL) { 7520 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 7521 rc = -EIO; 7522 goto cleanup_nomem; 7523 } 7524 7525 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 7526 goto cleanup_nomem; 7527 7528 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 7529 goto cleanup_nomem; 7530 7531 rc = ipr_alloc_mem(ioa_cfg); 7532 if (rc < 0) { 7533 dev_err(&pdev->dev, 7534 "Couldn't allocate enough memory for device driver!\n"); 7535 goto cleanup_nomem; 7536 } 7537 7538 /* 7539 * If HRRQ updated interrupt is not masked, or reset alert is set, 7540 * the card is in an unknown state and needs a hard reset 7541 */ 7542 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7543 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg); 7544 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); 7545 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 7546 ioa_cfg->needs_hard_reset = 1; 7547 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 7548 ioa_cfg->needs_hard_reset = 1; 7549 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 7550 ioa_cfg->ioa_unit_checked = 1; 7551 7552 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 7553 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg); 7554 7555 if (rc) { 7556 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 7557 pdev->irq, rc); 7558 goto cleanup_nolog; 7559 } 7560 7561 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 7562 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 7563 ioa_cfg->needs_warm_reset = 1; 7564 ioa_cfg->reset = ipr_reset_slot_reset; 7565 } else 7566 ioa_cfg->reset = ipr_reset_start_bist; 7567 7568 spin_lock(&ipr_driver_lock); 7569 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 7570 spin_unlock(&ipr_driver_lock); 7571 7572 LEAVE; 7573out: 7574 return rc; 7575 7576cleanup_nolog: 7577 ipr_free_mem(ioa_cfg); 7578cleanup_nomem: 7579 iounmap(ipr_regs); 7580out_release_regions: 7581 pci_release_regions(pdev); 7582out_scsi_host_put: 7583 scsi_host_put(host); 7584out_disable: 7585 pci_disable_msi(pdev); 7586 pci_disable_device(pdev); 7587 goto out; 7588} 7589 7590/** 7591 * ipr_scan_vsets - Scans for VSET devices 7592 * @ioa_cfg: ioa config struct 7593 * 7594 * Description: Since the VSET resources do not follow SAM in that we can have 7595 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 7596 * 7597 * Return value: 7598 * none 7599 **/ 7600static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 7601{ 7602 int target, lun; 7603 7604 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 7605 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 7606 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 7607} 7608 7609/** 7610 * ipr_initiate_ioa_bringdown - Bring down an adapter 7611 * @ioa_cfg: ioa config struct 7612 * @shutdown_type: shutdown type 7613 * 7614 * Description: This function will initiate bringing down the adapter. 7615 * This consists of issuing an IOA shutdown to the adapter 7616 * to flush the cache, and running BIST. 7617 * If the caller needs to wait on the completion of the reset, 7618 * the caller must sleep on the reset_wait_q. 7619 * 7620 * Return value: 7621 * none 7622 **/ 7623static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 7624 enum ipr_shutdown_type shutdown_type) 7625{ 7626 ENTER; 7627 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7628 ioa_cfg->sdt_state = ABORT_DUMP; 7629 ioa_cfg->reset_retries = 0; 7630 ioa_cfg->in_ioa_bringdown = 1; 7631 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 7632 LEAVE; 7633} 7634 7635/** 7636 * __ipr_remove - Remove a single adapter 7637 * @pdev: pci device struct 7638 * 7639 * Adapter hot plug remove entry point. 7640 * 7641 * Return value: 7642 * none 7643 **/ 7644static void __ipr_remove(struct pci_dev *pdev) 7645{ 7646 unsigned long host_lock_flags = 0; 7647 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7648 ENTER; 7649 7650 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7651 while(ioa_cfg->in_reset_reload) { 7652 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7653 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7654 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7655 } 7656 7657 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7658 7659 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7660 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7661 flush_scheduled_work(); 7662 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7663 7664 spin_lock(&ipr_driver_lock); 7665 list_del(&ioa_cfg->queue); 7666 spin_unlock(&ipr_driver_lock); 7667 7668 if (ioa_cfg->sdt_state == ABORT_DUMP) 7669 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7670 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7671 7672 ipr_free_all_resources(ioa_cfg); 7673 7674 LEAVE; 7675} 7676 7677/** 7678 * ipr_remove - IOA hot plug remove entry point 7679 * @pdev: pci device struct 7680 * 7681 * Adapter hot plug remove entry point. 7682 * 7683 * Return value: 7684 * none 7685 **/ 7686static void ipr_remove(struct pci_dev *pdev) 7687{ 7688 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7689 7690 ENTER; 7691 7692 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 7693 &ipr_trace_attr); 7694 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 7695 &ipr_dump_attr); 7696 scsi_remove_host(ioa_cfg->host); 7697 7698 __ipr_remove(pdev); 7699 7700 LEAVE; 7701} 7702 7703/** 7704 * ipr_probe - Adapter hot plug add entry point 7705 * 7706 * Return value: 7707 * 0 on success / non-zero on failure 7708 **/ 7709static int __devinit ipr_probe(struct pci_dev *pdev, 7710 const struct pci_device_id *dev_id) 7711{ 7712 struct ipr_ioa_cfg *ioa_cfg; 7713 int rc; 7714 7715 rc = ipr_probe_ioa(pdev, dev_id); 7716 7717 if (rc) 7718 return rc; 7719 7720 ioa_cfg = pci_get_drvdata(pdev); 7721 rc = ipr_probe_ioa_part2(ioa_cfg); 7722 7723 if (rc) { 7724 __ipr_remove(pdev); 7725 return rc; 7726 } 7727 7728 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 7729 7730 if (rc) { 7731 __ipr_remove(pdev); 7732 return rc; 7733 } 7734 7735 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 7736 &ipr_trace_attr); 7737 7738 if (rc) { 7739 scsi_remove_host(ioa_cfg->host); 7740 __ipr_remove(pdev); 7741 return rc; 7742 } 7743 7744 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 7745 &ipr_dump_attr); 7746 7747 if (rc) { 7748 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 7749 &ipr_trace_attr); 7750 scsi_remove_host(ioa_cfg->host); 7751 __ipr_remove(pdev); 7752 return rc; 7753 } 7754 7755 scsi_scan_host(ioa_cfg->host); 7756 ipr_scan_vsets(ioa_cfg); 7757 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 7758 ioa_cfg->allow_ml_add_del = 1; 7759 ioa_cfg->host->max_channel = IPR_VSET_BUS; 7760 schedule_work(&ioa_cfg->work_q); 7761 return 0; 7762} 7763 7764/** 7765 * ipr_shutdown - Shutdown handler. 7766 * @pdev: pci device struct 7767 * 7768 * This function is invoked upon system shutdown/reboot. It will issue 7769 * an adapter shutdown to the adapter to flush the write cache. 7770 * 7771 * Return value: 7772 * none 7773 **/ 7774static void ipr_shutdown(struct pci_dev *pdev) 7775{ 7776 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7777 unsigned long lock_flags = 0; 7778 7779 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7780 while(ioa_cfg->in_reset_reload) { 7781 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7782 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7783 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7784 } 7785 7786 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7787 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7788 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7789} 7790 7791static struct pci_device_id ipr_pci_table[] __devinitdata = { 7792 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7793 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 7794 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7795 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 7796 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7797 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 7798 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7799 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 7800 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7801 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 7802 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7803 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 7804 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7805 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 7806 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7807 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 7808 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7809 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7810 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7811 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7812 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7813 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7814 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7815 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 7816 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7817 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7818 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7819 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7820 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7821 IPR_USE_LONG_TRANSOP_TIMEOUT}, 7822 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7823 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 7824 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7825 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7826 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 7827 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7828 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7829 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 7830 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7831 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7832 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 7833 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7834 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 7835 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 7836 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 7837 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 7838 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7839 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 7840 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7841 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 7842 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7843 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7844 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 7845 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7846 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E, 7847 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 7848 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7849 { } 7850}; 7851MODULE_DEVICE_TABLE(pci, ipr_pci_table); 7852 7853static struct pci_error_handlers ipr_err_handler = { 7854 .error_detected = ipr_pci_error_detected, 7855 .slot_reset = ipr_pci_slot_reset, 7856}; 7857 7858static struct pci_driver ipr_driver = { 7859 .name = IPR_NAME, 7860 .id_table = ipr_pci_table, 7861 .probe = ipr_probe, 7862 .remove = ipr_remove, 7863 .shutdown = ipr_shutdown, 7864 .err_handler = &ipr_err_handler, 7865}; 7866 7867/** 7868 * ipr_init - Module entry point 7869 * 7870 * Return value: 7871 * 0 on success / negative value on failure 7872 **/ 7873static int __init ipr_init(void) 7874{ 7875 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 7876 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 7877 7878 return pci_register_driver(&ipr_driver); 7879} 7880 7881/** 7882 * ipr_exit - Module unload 7883 * 7884 * Module unload entry point. 7885 * 7886 * Return value: 7887 * none 7888 **/ 7889static void __exit ipr_exit(void) 7890{ 7891 pci_unregister_driver(&ipr_driver); 7892} 7893 7894module_init(ipr_init); 7895module_exit(ipr_exit); 7896